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Audio Codec AC'97 Voltage-Translation Transceiver

SN74AVC6T622

ACTIVE

Product details

Parameters

Technology Family AVC Applications I2S Rating Catalog Operating temperature range (C) -40 to 85 open-in-new Find other Application-specific voltage translators

Package | Pins | Size

TSSOP (PW) 20 42 mm² 6.5 x 6.4 VQFN (RGY) 20 16 mm² 3.5 x 4.5 open-in-new Find other Application-specific voltage translators

Features

  • Voltage-Level Transceiver for Interfacing 1.8 V Audio Codec (AC’97) Controllers With 3.3 V AC’97 Codec Links
  • Configurable I/O Switching Levels With Dual-Supply Pins Operating Over Full 1.2-V to 3.6-V Power-Supply Range
  • For Low-Power Operation, A and B Ports Are Placed in High-Impedance State When Either Supply Voltage Is Switched Off
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 7000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1500-V Charged-Device Model (C101)

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Description

The SN74AVC6T622 is a voltage-level transceiver for interfacing 1.8 V audio codec (AC’97) controllers, the audio/analog modem functionality found in personal computers, with 3.3V AC’97 codec links. With the digital switching levels of today’s AC’97 codecs lowering to 1.8-V logic levels, the SN74AVC6T622 device can be used to bridge the gap between legacy 3.3-V AC’97 codecs and AC’97 controllers that are now operating at 1.8 V. The 6-bit wide SN74AVC6T622 device complies with the AC’97 electrical interface (both levels and timing) specification.

Two supply-voltage pins allow the A-port and B-port input switching thresholds to be configured separately. The A port is designed to track VCCA, while the B port is designed to track VCCB. VCCA and VCCB can accept any supply voltage from 1.2 V to 3.6 V.

If either VCC is switched off (VCCA = 0 V and/or VCCB = 0 V), all outputs are placed in the high-impedance state to conserve power.

The SN74AVC6T622 is available in two 0.5-mm-pitch ball grid array (BGA) packages. The 20-ball package has dimensions of 3 mm × 2.5 mm, and the 24-ball package measures 3 mm × 3 mm. Memory cards are widely used in mobile phones, PDAs, digital cameras, personal media players, camcorders, set-top boxes, etc. Low static power consumption and small package size make the SN74AVC6T622 an ideal choice for these applications.

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Technical documentation

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Type Title Date
* Data sheet Audio Codec AC'97 Voltage-Translation Transceiver datasheet (Rev. A) Mar. 24, 2009
Selection guide Voltage Translation Buying Guide (Rev. A) Apr. 15, 2021
Selection guide Logic Guide (Rev. AB) Jun. 12, 2017
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) Dec. 02, 2015
Application note Voltage Translation Between 3.3-V, 2.5-V, 1.8-V, and 1.5-V Logic Standards (Rev. B) Apr. 30, 2015
User guide LOGIC Pocket Data Book (Rev. B) Jan. 16, 2007
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection Jul. 08, 2004
Application note Selecting the Right Level Translation Solution (Rev. A) Jun. 22, 2004
More literature Logic Cross-Reference (Rev. A) Oct. 07, 2003
More literature LCD Module Interface Application Clip May 09, 2003
User guide AVC Advanced Very-Low-Voltage CMOS Logic Data Book, March 2000 (Rev. C) Aug. 20, 2002
More literature Standard Linear & Logic for PCs, Servers & Motherboards Jun. 13, 2002
Application note 16-Bit Widebus Logic Families in 56-Ball, 0.65-mm Pitch Very Thin Fine-Pitch BGA (Rev. B) May 22, 2002
Application note Dynamic Output Control (DOC) Circuitry Technology And Applications (Rev. B) Jul. 07, 1999
Application note AVC Logic Family Technology and Applications (Rev. A) Aug. 26, 1998

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
10
Description
This EVM is designed to support any logic device that has a D, DW, DB, NS, PW, P, N, or DGV package in a 14 to 24 pin count.
Features
  • Board design allows for versatility in evaluation
  • Supports a wide-range of logic devices
EVALUATION BOARD Download
document-generic User guide
20
Description
Flexible EVM designed to support any logic or translation device that has a BQA, BQB, RGY (14-24 pin), RSV, RJW, or RHL package.
Features
  • Board design allows for versatility in evaluation
  • Supports a wide-range of logic and translation devices with included dual supply support
  • Board has 9 sections that can be broken apart for a smaller form factor

CAD/CAE symbols

Package Pins Download
TSSOP (PW) 20 View options
VQFN (RGY) 20 View options

Ordering & quality

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  • Ongoing reliability monitoring

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