SLASFM1A June   2025  ā€“ December 2025 AFE10004-EP

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Timing Requirements
    7. 5.7 Switching Characteristics
    8. 5.8 Timing Diagrams
    9. 5.9 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Digital-to-Analog Converter (DAC) Overview
        1. 6.3.1.1 DAC Resistor String
        2. 6.3.1.2 DAC Register Structure
        3. 6.3.1.3 DAC Buffer Amplifier
      2. 6.3.2 Output Switch Overview
      3. 6.3.3 Temperature Sensors
        1. 6.3.3.1 Temperature Data Format
          1. 6.3.3.1.1 Standard Binary-to-Decimal Temperature Data Calculation Example
          2. 6.3.3.1.2 Standard Decimal-to-Binary Temperature Data Calculation Example
        2. 6.3.3.2 Temperature Sensor Conversion Rate
        3. 6.3.3.3 Remote Temperature Sensor
          1. 6.3.3.3.1 Series Resistance Cancellation
          2. 6.3.3.3.2 Differential Input Capacitance
          3. 6.3.3.3.3 Filtering
          4. 6.3.3.3.4 Sensor Fault
          5. 6.3.3.3.5 Ī·-Factor Correction
          6. 6.3.3.3.6 Remote Temperature Offset Register
        4. 6.3.3.4 Temperature Sensor Alarm Functions
      4. 6.3.4 Look-Up Table (LUT) and Arithmetic-Logic Unit (ALU)
        1. 6.3.4.1 LUT and ALU Organization
        2. 6.3.4.2 LUT Coefficient to Register Mapping
        3. 6.3.4.3 LUT Input and Output Ranges
      5. 6.3.5 Memory
        1. 6.3.5.1 Operating Memory Page Storage
        2. 6.3.5.2 EEPROM Storage
          1. 6.3.5.2.1 EEPROM Integrity Check
      6. 6.3.6 Device Sequence Control
        1. 6.3.6.1 Depletion-Mode Field-Effect Transistor (FET) Bias Requirements
        2. 6.3.6.2 Sequence Control
          1. 6.3.6.2.1 Start-Up Sequence
          2. 6.3.6.2.2 Power-Down Sequence
          3. 6.3.6.2.3 Alarm Event
    4. 6.4 Device Functional Modes
      1. 6.4.1 Autonomous Operating Mode
      2. 6.4.2 Manual Operating Mode
        1. 6.4.2.1 DAC Input Overwrite
        2. 6.4.2.2 Temperature Sensor Overwrite
        3. 6.4.2.3 ALU Bypass
      3. 6.4.3 Interrupt Mode
    5. 6.5 Programming
      1. 6.5.1 I2C Serial Interface
        1. 6.5.1.1 I2C Bus Overview
        2. 6.5.1.2 I2C Bus Definitions
        3. 6.5.1.3 I2C Target Address Selection
        4. 6.5.1.4 I2C Read and Write Operations
        5. 6.5.1.5 I2C Timeout Function
        6. 6.5.1.6 I2C General-Call Reset
      2. 6.5.2 Serial Peripheral Interface (SPI)
        1. 6.5.2.1 SPI Bus Overview
        2. 6.5.2.2 SPI Frame Error Check
  8. 7 Register Maps
    1. 7.1 I2C Register Maps
    2. 7.2 SPI Register Maps
    3. 7.3 Registers
      1. 7.3.1 I2C Registers
        1. 7.3.1.1 I2C Page 1: Device Configuration Register Information
          1. 7.3.1.1.1  Local Temperature High Byte Register (offset = 00h) [reset = N/A]
          2. 7.3.1.1.2  Local Temperature Low Byte Register (offset = 01h) [reset = N/A]
          3. 7.3.1.1.3  Remote Temperature High Byte Register (offset = 02h) [reset = N/A]
          4. 7.3.1.1.4  Remote Temperature Low Byte Register (offset = 03h) [reset = N/A]
          5. 7.3.1.1.5  Temperature Status Register (offset = 04h) [reset = N/A]
          6. 7.3.1.1.6  AMC Status Register (offset = 05h) [reset = N/A]
          7. 7.3.1.1.7  Software Reset Register (offset = 07h) [reset = 00h]
          8. 7.3.1.1.8  Configuration 1 Register (offset = 08h) [reset = 01h]
          9. 7.3.1.1.9  Configuration 2 Register (offset = 09h) [reset = 08h]
          10. 7.3.1.1.10 LUT Configuration Register (offset = 0Ah) [reset = 03h]
          11. 7.3.1.1.11 DAC Overwrite Enable Register (offset = 0Bh) [reset = 00h]
          12. 7.3.1.1.12 Drive Enable Register (offset: 0Ch) [reset = 00h]
          13. 7.3.1.1.13 Drive Enable Select Register (offset: 0Dh) [reset = 00h]
          14. 7.3.1.1.14 Alarm Configuration Register (offset: 0Eh) [reset = 4Fh]
          15. 7.3.1.1.15 Interrupt Mode Register (offset = 0Fh) [reset = 00h]
          16. 7.3.1.1.16 Local Temperature High Limit Register (offset = 10h) [reset = 7Fh]
          17. 7.3.1.1.17 Local Temperature Low Limit Register (offset = 11h) [reset = 80h]
          18. 7.3.1.1.18 Remote Temperature High Limit High Byte Register (offset = 12h) [reset = 7Fh]
          19. 7.3.1.1.19 Remote Temperature High Limit Low Byte Register (offset = 13h) [reset = F0h]
          20. 7.3.1.1.20 Remote Temperature Low Limit High Byte Register (offset = 14h) [reset = 80h]
          21. 7.3.1.1.21 Remote Temperature Low Limit Low Byte Register (offset = 15h) [reset = 00h]
          22. 7.3.1.1.22 Remote Temperature Offset High Byte Register (offset = 16h) [reset = 00h]
          23. 7.3.1.1.23 Remote Temperature Offset Low Byte Register (offset = 17h) [reset = 00h]
          24. 7.3.1.1.24 THERM Hysteresis Register (offset = 1Ah) [reset = 0Ah]
          25. 7.3.1.1.25 Consecutive ALERT Register (offset = 1Bh) [reset = 01h]
          26. 7.3.1.1.26 Ī·-Factor Correction Register (offset = 1Ch) [reset = 00h]
          27. 7.3.1.1.27 Digital Filter Control Register (offset = 1Dh) [reset = 00h]
          28. 7.3.1.1.28 Version ID Register (offset = 1Eh) [reset = 00h]
          29. 7.3.1.1.29 Device ID Register (offset = 1Fh) [reset = A3h]
          30. 7.3.1.1.30 Temperature Overwrite High Byte Register (offset = 22h) [reset = 00h]
          31. 7.3.1.1.31 Temperature Overwrite Low Byte Register (offset = 23h) [reset = 00h]
          32. 7.3.1.1.32 Reset Status Register (offset = 24h) [reset = N/A]
          33. 7.3.1.1.33 One-Shot Temperature Register (offset = 28h) [reset = 00h]
          34. 7.3.1.1.34 Software Alarm Register (offset = 2Ah) [reset = 00h]
        2. 7.3.1.2 I2C Page 2: DAC Configuration Register Information
          1. 7.3.1.2.1  DAC0 Input Data Register (offset = 00h - 01h) [reset = 00h]
          2. 7.3.1.2.2  DAC1 Input Data Register (offset = 02h - 03h) [reset = 00h]
          3. 7.3.1.2.3  DAC2 Input Data Register (offset = 04h - 05h) [reset = 00h]
          4. 7.3.1.2.4  DAC3 Input Data Register (offset = 06h - 07h) [reset = 00h]
          5. 7.3.1.2.5  DAC0 Overwrite Register (offset = 08h - 09h) [reset = 00h]
          6. 7.3.1.2.6  DAC1 Overwrite Register (offset = 0Ah - 0Bh) [reset = 00h]
          7. 7.3.1.2.7  DAC2 Overwrite Register (offset = 0Ch - 0Dh) [reset = 00h]
          8. 7.3.1.2.8  DAC3 Overwrite Register (offset = 0Eh - 0Fh) [reset = 00h]
          9. 7.3.1.2.9  CLAMP1 Overwrite Register (offset: 10h - 11h) [reset = 00h]
          10. 7.3.1.2.10 CLAMP2 Overwrite Register (offset: 12h - 13h) [reset = 00h]
          11. 7.3.1.2.11 CLAMP1 Input Data Register (offset: 18h - 19h) [reset = 00h]
          12. 7.3.1.2.12 CLAMP2 Input Data Register (offset: 1Ah - 1Bh) [reset = 00h]
          13. 7.3.1.2.13 DAC0 LUT Data Register (offset = 20h - 21h) [reset = 00h]
          14. 7.3.1.2.14 DAC1 LUT Data Register (offset = 22h - 23h) [reset = 00h]
          15. 7.3.1.2.15 DAC2 LUT Data Register (offset = 24h - 25h) [reset = 00h]
          16. 7.3.1.2.16 DAC3 LUT Data Register (offset = 26h - 27h) [reset = 00h]
          17. 7.3.1.2.17 Broadcast Register (offset = 30h - 31h) [reset = 00h]
        3. 7.3.1.3 I2C Page 4: LUT0 and LUT1 Configuration Register Information
          1. 7.3.1.3.1 DELTA HAMM Registers (offset = 00h - 63h) [reset = 00h (even addresses), FFh (odd addresses)]
          2. 7.3.1.3.2 DAC0 BASE HAMM Registers (offset = 64h - 67h) [reset = 00h]
          3. 7.3.1.3.3 DAC1 BASE HAMM Registers (offset = 68h - 6Bh) [reset = 00h]
        4. 7.3.1.4 I2C Page 5: LUT2 and LUT3 Configuration Register Information
          1. 7.3.1.4.1 DELTA HAMM Registers (offset = 00h - 63h) [reset = 00h (even addresses, FFh (odd addresses)]
          2. 7.3.1.4.2 DAC2 BASE HAMM Registers (offset = 64h - 67h) [reset = 00h]
          3. 7.3.1.4.3 DAC3 BASE HAMM Registers (offset = 68h - 6Bh) [reset = 00h]
        5. 7.3.1.5 I2C Page 15: Notepad Register Information
          1. 7.3.1.5.1 Notepad Registers (offset = 00h to 13h) [reset = 00h]
          2. 7.3.1.5.2 EEPROM Burn Register (offset = 7Ch) [reset = 00h]
      2. 7.3.2 SPI Registers
        1. 7.3.2.1 SPI Page 1: Device Configuration Register Information
          1. 7.3.2.1.1  Local Temperature Register (offset = 00h) [reset = N/A]
          2. 7.3.2.1.2  Remote Temperature Register (offset = 02h) [reset = N/A]
          3. 7.3.2.1.3  Status Register (offset = 04h) [reset = N/A]
          4. 7.3.2.1.4  Software Reset Register (offset = 06h) [reset = 0000h]
          5. 7.3.2.1.5  Configuration Register (offset = 08h) [reset = 0108h]
          6. 7.3.2.1.6  LUT/DAC Configuration Register (offset = 0Ah) [reset = 0300h]
          7. 7.3.2.1.7  Drive Enable Configuration Register (offset: 0Ch) [reset = 0000h]
          8. 7.3.2.1.8  Alarm Configuration Register (offset: 0Eh) [reset = 4F00h]
          9. 7.3.2.1.9  Local Temperature Limit Register (offset = 10h) [reset = 7F80h]
          10. 7.3.2.1.10 Remote Temperature High Limit Register (offset = 12h) [reset = 7FF0h]
          11. 7.3.2.1.11 Remote Temperature Low Limit Register (offset = 14h) [reset = 8000h]
          12. 7.3.2.1.12 Remote Temperature Offset Register (offset = 16h) [reset = 0000h]
          13. 7.3.2.1.13 Temperature Configuration 1 Register (offset = 1Ah) [reset = 0A01h]
          14. 7.3.2.1.14 Temperature Configuration 2 Register (offset = 1Ch) [reset = 0000h]
          15. 7.3.2.1.15 Device ID Register (offset = 1Eh) [reset = 00A3h]
          16. 7.3.2.1.16 Temperature Overwrite Register (offset = 22h) [reset = 0000h]
          17. 7.3.2.1.17 Reset Status Register (offset = 24h) [reset = N/A]
          18. 7.3.2.1.18 One-Shot Temperature Register (offset = 28h) [reset = 0000h]
          19. 7.3.2.1.19 Software Alarm Register (offset = 2Ah) [reset = 0000h]
        2. 7.3.2.2 SPI Page 2: DAC Configuration Register Information
          1. 7.3.2.2.1  DAC0 Input Data Register (offset = 00h) [reset = 0000h]
          2. 7.3.2.2.2  DAC1 Input Data Register (offset = 02h) [reset = 0000h]
          3. 7.3.2.2.3  DAC2 Input Data Register (offset = 04h) [reset = 0000h]
          4. 7.3.2.2.4  DAC3 Input Data Register (offset = 06h) [reset = 0000h]
          5. 7.3.2.2.5  DAC0 Overwrite Register (offset = 08h) [reset = 0000h]
          6. 7.3.2.2.6  DAC1 Overwrite Register (offset = 0Ah) [reset = 0000h]
          7. 7.3.2.2.7  DAC2 Overwrite Register (offset = 0Ch) [reset = 0000h]
          8. 7.3.2.2.8  DAC3 Overwrite Register (offset = 0Eh) [reset = 0000h]
          9. 7.3.2.2.9  CLAMP1 Overwrite Register (offset: 10h) [reset = 0000h]
          10. 7.3.2.2.10 CLAMP2 Overwrite Register (offset: 12h) [reset = 0000h]
          11. 7.3.2.2.11 CLAMP1 Input Data Register (offset: 18h) [reset = 0000h]
          12. 7.3.2.2.12 CLAMP2 Input Data Register (offset: 1Ah) [reset = 0000h]
          13. 7.3.2.2.13 DAC0 LUT Data Register (offset = 20h) [reset = 0000h]
          14. 7.3.2.2.14 DAC1 LUT Data Register (offset = 22h) [reset = 0000h]
          15. 7.3.2.2.15 DAC2 LUT Data Register (offset = 24h) [reset = 0000h]
          16. 7.3.2.2.16 DAC3 LUT Data Register (offset = 26h) [reset = 0000h]
          17. 7.3.2.2.17 Broadcast Register (offset = 30h) [reset = 0000h]
        3. 7.3.2.3 SPI Page 4: LUT0 and LUT1 Configuration Register Information
          1. 7.3.2.3.1 DELTA Registers (offset = 00h - 62h) [reset = 00FFh]
          2. 7.3.2.3.2 DAC0 BASE Registers (offset = 64h - 66h) [reset = 0000h]
          3. 7.3.2.3.3 DAC1 BASE Registers (offset = 68h - 6Ah) [reset = 0000h]
        4. 7.3.2.4 SPI Page 5: LUT2 and LUT3 Configuration Register Information
          1. 7.3.2.4.1 DELTA Registers (offset = 00h - 62h) [reset = 00FFh]
          2. 7.3.2.4.2 DAC2 BASE Registers (offset = 64h - 66h) [reset = 0000h]
          3. 7.3.2.4.3 DAC3 BASE Registers (offset = 68h - 6Ah) [reset = 0000h]
        5. 7.3.2.5 SPI Page 15: Notepad Register Information
          1. 7.3.2.5.1 Notepad Registers (offset = 00h to 12h) [reset = 0000h]
          2. 7.3.2.5.2 EEPROM Burn Register (offset = 7Ch) [reset = 0000h]
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Output Switching Timing
    2. 8.2 Typical Applications
      1. 8.2.1 Temperature-Compensated Bias Generator for an LDMOS Power Amplifier (PA)
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Supply Voltage Selection
          2. 8.2.1.2.2 DAC Output Voltage Range
          3. 8.2.1.2.3 Temperature-Sensing Applications
          4. 8.2.1.2.4 PAVDD Isolation From the Power Amplifier
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Temperature-Compensated Bias Generator for a Gallium Nitride (GaN) Power Amplifier (PA)
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
          1. 8.2.2.2.1 Supply Voltage Selection
          2. 8.2.2.2.2 DAC Output Voltage Range
        3. 8.2.2.3 Application Curves
    3. 8.3 Initialization Setup
    4. 8.4 Power Supply Recommendations
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 Layout Example
        1. 8.5.2.1 Positive Output Range Layout Example
        2. 8.5.2.2 Negative Output Range Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

4 Pin Configuration and Functions

Figure 4-1 RGE Package, 24-Pin VQFN (Top View)
Table 4-1 Pin Functions
PIN TYPE DESCRIPTION
NO. NAME
1 DRVEN2 Input Asynchronous switch control signals.
2 DRVEN1 Input
3 SDA Input/Output I2C bidirectional data line. This pin must be connected to GND if communicating to the device through SPI.
4 SCL/ CS Input I2C: Clock input.
SPI: Active-low serial data enable. This input is the frame synchronization signal for the serial data. When the signal goes low, this pin enables the serial interface input shift register.
5 A2/SCLK Input I2C: Target address selector.
SPI: Clock input.
6 A1/SDI Input I2C: Target address selector.
SPI: Data input. Data are clocked into the input shift register on each falling edge of the SCLK pin.
7 A0/SDO Input/Output I2C: Target address selector.
SPI: Data output. The SDO pin must be enabled before operation by setting the SDOEN bit. Data are clocked out of the input shift register on each rising edge of the SCLK pin.
8 VIO Power IO supply voltage (1.65V to 3.6V). This pin sets the I/O operating voltage for the device.
9 PA_ON Output Synchronization signal. PA_ON is a CMOS output. The PA_ON pin is set low until the device is ready for full operation or if an alarm condition is detected.
10 GND Ground Ground reference point for all circuitry on the device
11 OUT1 Output DAC1 switch output
12 DAC1 Output DAC1 buffer output
13 CLAMP1 Output CLAMP1 buffer output
14 DAC0 Output DAC0 buffer output
15 VSS Power Output buffers negative analog power supply (ā€“11V to 0V)
16 VCC Power Output buffers positive analog power supply (0V to 5.5V)
17 DAC3 Output DAC3 buffer output
18 CLAMP2 Output CLAMP2 buffer output
19 DAC2 Output DAC2 buffer output
20 OUT2 Output DAC2 switch output
21 VDD Power Analog supply voltage (4.5V to 5.5V)
22 D+ Input Remote temperature sensor connections. If unused, connect these pins together.
23 Dā€“ Input
24 RESET/ ALMIN Input Active low reset input. Logic low on this pin causes the device to initiate a reset event. Alternatively, this pin can be configured as an active-low alarm signal into the device to initiate an alarm event.
Thermal Pad Thermal Pad ā€” The thermal pad is located on the package underside. Connect the thermal pad to any internal PCB ground plane through multiple vias for good thermal performance.