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SN74AVC6T622

更新时间： 2024-11-23 06:12:55
品牌 Logo 应用领域
德州仪器 - TI 解码器编解码器
页数 文件大小 规格书
23页 764K
描述
AUDIO CODEC AC 97 VOLTAGE-TRANSLATION TRANSCEIVER

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SN74AVC6T622 数据手册

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SN74AVC6T622  
www.ti.com ......................................................................................................................................................................................... SCES706–SEPTEMBER 2008  
AUDIO CODEC AC'97 VOLTAGE-TRANSLATION TRANSCEIVER  
1
FEATURES  
•
•
•
Voltage-Level Transceiver for Interfacing 1.8 V  
Audio Codec (AC'97) Controllers With 3.3 V  
AC'97 Codec Links  
•
•
Latch-Up Performance Exceeds 100 mA Per  
JESD 78, Class II  
ESD Protection Exceeds JESD 22  
Configurable I/O Switching Levels With  
Dual-Supply Pins Operating Over Full 1.2-V to  
3.6-V Power-Supply Range  
–
–
–
7000-V Human-Body Model (A114-A)  
200-V Machine Model (A115-A)  
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  
TOP VIEW  
RGY PACKAGE  
TOP VIEW  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
1
2
DIR1  
DIR2  
CCA  
A4  
V
V
B4  
CCB  
3
4
B5  
A5  
5
GND  
A6  
A1  
A3  
DNU  
A2  
GND  
B6  
B2  
B1  
B3  
1
10  
11  
DIR2  
DIR1  
A2  
6
Exposed  
Center  
Pad  
7
8
9
20  
DIR(345)  
10  
DIR(345)  
The exposed center pad, if used, must be  
connected as a secondary ground or left  
electrically open.  
ZXY PACKAGE  
(TOP VIEW)  
TERMINAL ASSIGNMENTS  
(20-Ball ZXY Package)  
A
B
C
D
A
VCCA  
A5  
B
DIR2  
A4  
C
DIR1  
B4  
D
VCCB  
B5  
5
4
3
2
1
5
4
3
2
1
A6  
GND  
A1  
GND  
B2  
B6  
A3  
DNU(1)  
B1  
A2  
DIR(345)  
B3  
(1) DNU – Do not use; should be left unconnected  
DESCRIPTION/ORDERING INFORMATION  
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.  
1
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, 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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