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参数资料
| 型号： | TCM320AC46N |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP20 |
| 文件页数： | 12/19页 |
| 文件大小： | 246K |
| 代理商： | TCM320AC46N |
TCM320AC46
GENERAL-PURPOSE AUDIO INTERFACE FOR DSP
SLWS001 – D4091, JUNE 1993
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
2
description (continued)
The receive section takes a frame of serial data on DIN and converts it to analog through an expanding
digital-to-analog converter (EXDAC) if the companded mode is selected; otherwise, a linear conversion is
performed. The analog signal then passes through switched-capacitor filters, which provide out-of-band
rejection, (sin x)/x correction functions, and smoothing. The filtered signal is sent to the earphone amplifier. The
earphone amplifier has a differential output with adjustable gain that is designed to minimize static power
dissipation.
A single on-chip, high-precision band-gap circuit generates all voltage references, eliminating the need for
external reference voltages.
The TCM320AC46 device is characterized for operation from 0
°C to 70°C.
functional block diagram
12
13
8
DIN
FSR
7
14
15
LINSEL
1
PDN
16
GND
5
VCC
10
4
3
2
EARMUTE
EARGS
EARB
EARA
Amplifier
Earphone
256 kHz
Reference
Voltage
Converter
D/A
Reference
Voltage
Converter
A/D
Reference
Voltage
Band-Gap
8 kHz
256 kHz
Generator
Clock
Autozero
DCLKR
CLK
TSX/DCLKX
Control
Clock
FSX
DOUT
Logic
Output
ADC
High Pass
First-Order
Transmit
Low Pass
Sixth-Order
Transmit
MICGS
20
17
19
18
6
VMID
MICBIAS
VMID
Generator
VMID
MICIN
MICMUTE
Buffer
Input
Antialias
Third-Order
Transmit
Buffer
Receive
Filter
Receive
DAC
Logic
Input
256 kHz
8 kHz
9
LINSEL
15
11
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相关代理商/技术参数 |
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| TCM320AC54 | 制造商:TI 制造商全称:Texas Instruments 功能描述:MONOLITHIC SERIAL INTERFACE COMBINED PCM CODEC AND FILTER |
| TCM320AC54CDW | 制造商:Texas Instruments 功能描述: |
| TCM320AC54CN | 制造商:Texas Instruments 功能描述: |
| TCM320AC54DW | 制造商:TI 制造商全称:Texas Instruments 功能描述:MONOLITHIC SERIAL INTERFACE COMBINED PCM CODEC AND FILTER |
| TCM320AC54N | 制造商:TI 制造商全称:Texas Instruments 功能描述:MONOLITHIC SERIAL INTERFACE COMBINED PCM CODEC AND FILTER |
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