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TCM320AC36CDW Datasheet(PDF) 18 Page - Texas Instruments

Part # TCM320AC36CDW
Description  VOICE-BAND AUDIO PROCESSORS VBAPE
PDF  23 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TCM320AC36CDW Datasheet(HTML) 18 Page - Texas Instruments

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TCM320AC36, TCM320AC37
VOICE-BAND AUDIO PROCESSORS (VBAP
™)
SLWS003C – MAY 1992 – REVISED APRIL – 1998
18
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
Table 2. Receive-Data Bit Definitions
BIT NO.
COMPANDED MODE
LINEAR MODE
0
CD7
LD12
1
CD6
LD11
2
CD5
LD10
3
CD4
LD9
4
CD3
LD8
5
CD2
LD7
6
CD1
LD6
7
CD0
LD5
8
–
LD4
9
–
LD3
A
–
LD2
B
–
LD1
C
–
LD0
D
–
V2
E
–
V1
F
–
V0
Volume control and other control bits always follow the PCM data in time:
Companded Mode:
Linear Data
Volume Control
Linear Mode:
Companded Data
V2
LD0
LD1
LD2
LD3
LD4
LD12 LD11 LD10 LD9 LD8 LD7 LD6 LD5
CD0
CD1
CD2
CD3
CD4
CD5
CD6
CD7
V1
V0
MSB
(sign bit)
LSB
MSB
(sign bit)
LSB
Time
where:
CD7 – CD0 = Data word when in companded mode
LD12 – LD0 = Data word when in linear mode
V2, V1, V0 = Volume (attenuation control)
000 = maximum volume, 3 dBm0
111 = minimum volume, –18 dBm0



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