Datasheet

1
FEATURES
DNU
A3
A6
A5
V
CCA
A2
A1
A4
GND
DIR2
V
CCB
B5
B6
B1
B3
DIR1
B4
B2
GND
DIR(345)
1
2
3
4
5
6
7
8
16
20
15
19
14
18
13
17
12
11
10
9
1
2
3
4
5
6
7
8
16
20
15
19
14
18
13
17
12
11
10
9
DIR(345)
A2
DNU
A3
A6
A5
V
CCA
A1
A4
GND
DIR2
Exposed
Center
Pad
DIR1
V
CCB
B5
B6
B1
B3
B4
B2
GND
ZXY PACKAGE
(TOP VIEW)
1
2
3
4
5
BA C D
DESCRIPTION/ORDERING INFORMATION
SN74AVC6T622
www.ti.com
............................................................................................................................................. SCES706A SEPTEMBER 2008 REVISED MARCH 2009
AUDIO CODEC AC ' 97 VOLTAGE-TRANSLATION TRANSCEIVER
Voltage-Level Transceiver for Interfacing 1.8 V Latch-Up Performance Exceeds 100 mA Per
Audio Codec (AC'97) Controllers With 3.3 V JESD 78, Class II
AC'97 Codec Links
ESD Protection Exceeds JESD 22
Configurable I/O Switching Levels With
7000-V Human-Body Model (A114-A)
Dual-Supply Pins Operating Over Full 1.2-V to
200-V Machine Model (A115-A)
3.6-V Power-Supply Range
1500-V Charged-Device Model (C101)
For Low-Power Operation, A and B Ports Are
Placed in High-Impedance State When Either
Supply Voltage Is Switched Off
PW PACKAGE RGY PACKAGE
(TOP VIEW) (BOTTOM VIEW)
The exposed center pad, if used, must be
connected as a secondary ground or left
electrically open.
TERMINAL ASSIGNMENTS
(20-Ball ZXY Package)
A B C D
5 V
CCA
DIR2 DIR1 V
CCB
4 A5 A4 B4 B5
3 A6 GND GND B6
2 A3 A1 B2 B1
1 DNU
(1)
A2 DIR(345) B3
(1) DNU Do not use; should be left unconnected
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.
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2008 2009, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.

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