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參數(shù)資料
| 型號： | IDT821064PQF |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 編解碼器 |
| 英文描述： | QUAD PROGRAMMABLE PCM CODEC WITH GCI INTERFACE |
| 中文描述： | A/MU-LAW, PROGRAMMABLE CODEC, PQFP64 |
| 封裝： | PLASTIC, QFP-64 |
| 文件頁數(shù)： | 25/33頁 |
| 文件大小： | 510K |
| 代理商： | IDT821064PQF |
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INDUSTRIAL TEMPERATURE RANGE
IDT821064 QUAD PROGRAMMABLE PCM CODEC WITH GCI INTERFACE
DSH[3:0] = 1011: 22 ms;
DSH[3:0] = 1100: 24 ms;
DSH[3:0] = 1101: 26 ms;
DSH[3:0] = 1110: 28 ms;
DSH[3:0] = 1111: 30 ms.
GK Debounce bits GK[3:0] set the debounce time of SI2 input from SLIC for corresponding channel.
GK[3:0] = 0000: 0 ms (default);
GK[3:0] = 0001: 2 ms;
GK[3:0] = 0010: 4 ms;
GK[3:0] = 0011: 6 ms;
GK[3:0] = 0100: 8 ms;
GK[3:0] = 0101: 10 ms;
GK[3:0] = 0110: 12 ms;
GK[3:0] = 0111: 14 ms;
GK[3:0] = 1000: 16 ms;
GK[3:0] = 1001: 18 ms;
GK[3:0] = 1010: 20 ms;
GK[3:0] = 1011: 22 ms;
GK[3:0] = 1100: 24 ms;
GK[3:0] = 1101: 26 ms;
GK[3:0] = 1110: 28 ms;
GK[3:0] = 1111: 30 ms;
4. A/D Gain, D/A Gain, Power Down and PCM Receive Path Cutoff (08H/88H),Read/Write
Channel Power Down bit (PD) selects the operation mode on corresponding channel:
PD = 0: the corresponding channel is in normal operation;
PD = 1: the corresponding channel is powered down (default).
PCMCT bit determines the operation of PCM Receive Path on corresponding channel:
PCMCT = 0: PCM Receive Path is in normal operation (default);
PCMCT = 1: PCM Receive Path is cut off.
A/D Gain bit (GAD) sets the gain of analog A/D for corresponding channel:
GAD = 0: 0 dB (default);
GAD = 1: +6 dB.
D/A Gain bit (GDA) sets the gain of analog D/A for corresponding channel:
GDA = 0: 0 dB (default);
GDA = 1: -6 dB.
Attention: The lower 4 bits of the I/O data byte that follows this write-command (88H) must be '0000' to ensure proper operation.
5. Tone Generator Enable (09H/89H), Read/Write
TEN1 = 0: Tone1 generator is disabled (default);
TEN1 = 1: Tone1 generator is enabled.
TEN0 = 0: Tone0 generator is disabled (default);
TEN0 = 1: Tone0 generator is enabled.
Attention: The b2 and b3 of the I/O data byte that follows this write-command (89H) must be '11' to ensure proper operation.
b7
R
/W
PD
b6
0
b5
0
GAD
b4
0
GDA
b3
1
0
b2
0
0
b1
0
0
b0
0
0
Command
I/O data
PCMCT
b7
R
/W
R
b6
0
R
b5
0
R
b4
0
R
b3
1
1
b2
0
1
b1
0
b0
1
Command
I/O data
TEN1
TEN0
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