1 |
NC |
— |
— |
No connection. Pin may be grounded or left unconnected. |
2 |
NC |
— |
— |
No connection. Pin may be grounded or left unconnected. |
3 |
FS0 |
I |
— |
Parallel pin control. This is the LSB. |
4 |
FS1 |
I |
— |
Parallel pin control |
5 |
CAL |
I |
— |
Chip enable. In Pin Mode (not SPI Mode), rising edges presented to this pin activate the VCO calibration. |
6 |
GND |
— |
— |
Ground |
7 |
VbiasVCO |
— |
— |
VCO bias. Requires connecting 10-µF capacitor to ground. Place close to pin. |
8 |
GND |
— |
— |
Ground |
9 |
SYNC |
I |
— |
Phase synchronization input pin. |
10 |
GND |
— |
— |
Ground |
11 |
VccDIG |
— |
— |
Digital supply. Recommend connecting 0.1-µF capacitor to ground. |
12 |
OSCinP |
I |
— |
Complimentary Reference input clock pins. High input impedance. Requires connecting series capacitor (0.1 µF recommended). |
13 |
OSCinM |
I |
— |
Complimentary pin to OSCinP. |
14 |
VregIN |
— |
— |
Input reference path regulator decoupling. Requires connecting 1-µF capacitor to ground. Place close to pin. |
15 |
FS2 |
I |
— |
Parallel pin control |
16 |
FS3 |
I |
— |
Parallel pin control |
17 |
FS4 |
I |
— |
Parallel pin control |
18 |
FS5 |
I |
— |
Parallel pin control |
19 |
FS6 |
I |
— |
Parallel pin control |
20 |
FS7 |
I |
— |
Parallel pin control. This is the MSB. Controls output state in pin mode. When this pin is low, only RFoutA is active, otherwise both outputs are active. |
21 |
VccCP |
— |
— |
Charge pump supply. Recommend connecting 0.1-µF capacitor to ground. |
22 |
CPout |
O |
— |
Charge pump output. Recommend connecting C1 of loop filter close to charge pump pin. |
23 |
GND |
— |
Ground |
Ground |
24 |
GND |
— |
Ground |
Ground |
25 |
VccMASH |
— |
— |
Digital supply. Recommend connecting 0.1-µF and 10-µF capacitor to ground. |
26 |
SCK |
I |
— |
SPI input clock. High impedance CMOS input. 1.8 – 3.3V logic. |
27 |
SDI |
I |
— |
SPI input data. High impedance CMOS input. 1.8 – 3.3V logic. |
28 |
GND |
— |
Ground |
Ground |
29 |
RFoutBM |
O |
— |
Complementary pin for RFoutBP |
30 |
RFoutBP |
O |
— |
Differential output B Pair. Requires connecting a 50-Ω resistor pullup to VCC as close as possible to pin. Can be used as a synthesizer output or SYSREF output. |
31 |
GND |
— |
Ground |
Ground |
32 |
MUXout |
O |
— |
Multiplexed output pin. Can output: lock detect, SPI readback and diagnostics. |
33 |
NC |
— |
— |
No connection. Leave Unconnected. |
34 |
VccBUF |
— |
— |
Output buffer supply. Requires connecting 0.1-µF capacitor to ground. |
35 |
GND |
— |
Ground |
Ground |
36 |
RFoutAM |
O |
— |
Complementary pin for RFoutAP |
37 |
RFoutAP |
O |
— |
Differential output B Pair. Requires connecting a 50-Ω resistor pullup to VCC as close as possible to pin. |
38 |
GND |
— |
Ground |
Ground |
39 |
CSB |
I |
— |
SPI chip select bar. High impedance CMOS input. 1.8 – 3.3-V logic. |
40 |
GND |
— |
Ground |
Ground |
41 |
VccVCO2 |
— |
— |
VCO supply. Recommend connecting 0.1-µF and 10-µF capacitor to ground. |
42 |
VbiasVCO2 |
— |
— |
VCO bias. Requires connecting 1-µF capacitor to ground. |
43 |
SysRefReq |
I |
— |
SYSREF request input for JESD204B support. |
44 |
VrefVCO2 |
— |
— |
VCO supply reference. Requires connecting 10-µF capacitor to ground. |
45 |
RECAL_EN |
I |
— |
Enables the automatic recalibration feature. |
46 |
NC |
— |
— |
No connection. Pin may be grounded or left unconnected. |
47 |
NC |
— |
— |
No connection. Pin may be grounded or left unconnected. |
48 |
NC |
— |
— |
No connection. Pin may be grounded or left unconnected. |
49 |
NC |
— |
— |
No connection. Pin may be grounded or left unconnected. |
50 |
NC |
— |
— |
No connection. Pin may be grounded or left unconnected. |
51 |
GND |
— |
Ground |
Ground |
52 |
NC |
— |
— |
No connection. Pin may be grounded or left unconnected. |
53 |
VbiasVARAC |
— |
— |
VCO Varactor bias. Requires connecting 10-µF capacitor to ground. |
54 |
GND |
— |
Ground |
Ground |
55 |
Vtune |
I |
— |
VCO tuning voltage input. |
56 |
VrefVCO |
— |
— |
VCO supply reference. Requires connecting 10-µF capacitor to ground. |
57 |
VccVCO |
— |
— |
VCO supply. Recommend connecting 0.1-µF and 10-µF capacitor to ground. |
58 |
NC |
— |
— |
No connection. Leave Unconnected. |
59 |
VregVCO |
— |
— |
VCO regulator node. Requires connecting 1-µF capacitor to ground. |
60 |
GND |
— |
Ground |
Ground |
61 |
GND |
— |
Ground |
Ground |
62 |
NC |
— |
— |
No connection. Pin may be grounded or left unconnected. |
63 |
NC |
— |
— |
No connection. Pin may be grounded or left unconnected. |
64 |
NC |
— |
— |
No connection. Pin may be grounded or left unconnected. |