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参数资料
| 型号： | TLV320AIC22PTR |
| 厂商： | Texas Instruments, Inc. |
| 元件分类： | Codec |
| 英文描述： | DUAL VOIP CODEC |
| 中文描述： | 双VoIP编解码器 |
| 文件页数： | 30/55页 |
| 文件大小： | 763K |
| 代理商： | TLV320AIC22PTR |
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TLV320AIC22
DUAL VOIP CODEC
SLAS281B – JULY 2000 – REVISED JUNE 2002
36
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
register functional summary (continued)
D Linear/A-law/-law mode select for both codecs
D Independent power down for drivers
D 4-bit DAC voltage control
D High-pass filter bypass for both channels
D Analog-filter pole select (16 kHz, 21.3 kHz, 32 kHz, 64 kHz)
D Zero-crossing enable and threshold
D Number of frames after which control information is to be sent
register map
Registers 1 – 5 and 15 are used to control codec 1.
Registers 6 –10 and 16 are used to control codec 2.
Registers 11 – 14 and 17 are used to configure the device inputs, outputs, and clocking.
control register 1 (for codec 1)
register address = 00000001
D7
D6
D5
D4
D3
D2
D1
D0
DESCRIPTION
X
Binary number representing the D-register for codec 1 (loaded as D–1)
X
Binary number representing the N-register for codec 1
Default value: 0101 0000 (D = 6 and N = 0)
control register 2 (for codec 1)
register address = 00000010
D7
D6
D5
D4
D3
D2
D1
D0
DESCRIPTION
X
Binary number representing the I-register for codec 1 (loaded as I–1)
1
Analog loopback asserted
0
Analog loopback not asserted
1
Digital loopback asserted
0
Digital loopback not asserted
1
Codec 1 power down asserted
0
Codec 1 power down not asserted
1
Software reset (registers 1 – 5 and 15 are reset to default settings)
0
Software reset not asserted
Default value: 0101 0000 (I = 6)
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