参数资料
型号: PCM3794RHBR
厂商: TEXAS INSTRUMENTS INC
元件分类: 通信及网络
英文描述: SPECIALTY TELECOM CIRCUIT, PQCC32
封装: 5 X 5 MM, GREEN, PLASTIC, QFN-32
文件页数: 37/67页
文件大小: 1417K
代理商: PCM3794RHBR
www.ti.com
Attack
Recovery
+FS
–FS
+FS
–FS
Input Data
Output Data
Attack Time
Recovery Time
+FS
–FS
+FS
–FS
Input Data
Output Data
T0166-01
SLES193C – AUGUST 2006 – REVISED FEBRUARY 2007
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
Register 83
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
RALC
RSV
RRTC
RATC
RCP1
RCP0
RLV1
RLV0
IDX[6:0]: 101 0011b (53h): Register 83
RALC: Automatic Level Control (ALC) Enable for Recording
Default value: 0
Automatic level control can be enabled with some parameters for microphone input or lower analog source level.
RALC = 0
Disable (default)
RALC = 1
Enable
RRTC: ALC Recovery Time Control for Recording
Default value: 0
This bit is used to select the recovery time for the ALC. The response is shown in Figure 36.
RRTC = 0
3.4 s (default)
RRTC = 1
13.6 s
RATC: ALC Attack Time Control for Recording
Default value: 0
This bit is used to select the attack time for the ALC. The response is shown in Figure 36.
RATC = 0
1 ms (default)
RATC = 1
2 ms
Figure 36. Attack and Recovery Time Response
42
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