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參數(shù)資料
| 型號： | PS9604 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Stereo, 24-Bit, 192kHz PCM-to-PWM Converter for Full Digital Power Amplifier |
| 中文描述： | 立體聲，24位192kHz的PCM的全數(shù)字功放到PWM變換器 |
| 文件頁數(shù)： | 4/6頁 |
| 文件大?。?/td> | 241K |
| 代理商： | PS9604 |
PULSUS
PS9604
Copyright Pulsus Technologies Inc. 2000
4
AUGUST 2000 REV0.4
This input is 5V tolerant
.
PREIMNARY
Pin Descriptions
1
V
DD
-
Digital Power, +3.3V
2
BCLK
IN
Bit clock input for serial audio data.
BCLK shifts data input on the rising clock edge. Need not run continuously;
may be gated or used in a burst fashion.
This input is 5V tolerant
.
3
WCLK
IN
Word clock input for serial audio data.
WCLK latch the shifted data input on the falling clock edge.
This input is 5V tolerant
.
4
LDATA
IN
Left channel serial data input.
This input is 5V tolerant
.
5
RDATA
IN
Right channel serial data input.
Both LDATA and RDATA are assumed to be MSB-first 2’s-compliment.
If data is absent or held to a constant value (all 0’s or constant values for
8192 words at 44.1/48kHz sampling rate), or any of the input clocks are
removed, an internal MUTE is activated.
This input is 5V tolerant
.
6
SF1
OUT
7
SF0
OUT
Sampling rate indication output.
(SF1, SF0) = (0,0) : 44.1kHz
(0,1) : other sampling rate
(1,0) : 48kHz
(1,1) : 32kHz
8
96K
OUT
88.2/96kHz sampling rate indication output.
This pin goes High when the sampling rate is 88.2/96kHz.
9
192K
OUT
176.4/192kHz sampling rate indication output.
This pin goes High when the sampling rate is 176.4/192kHz.
10
FS_CLK
IN
Sampling rate clock input.
This input is 5V tolerant
.
Internal pull-down resistor.
11
REF_CLK
IN
Reference clock input.
12.288MHz Reference clock is required to detect sampling rate.
This input is 5V tolerant
.
Internal pull-down resistor.
12
TEST_ENA
-
Chip test mode enabling input.
This pin should be tied to GND for normal operation.
13
SYS_CLK
IN
Master system clock input. Connect to an external clock source.
2048Fs at 32/44.1/48kHz sampling rate,
1024Fs at 88.2/96kHz sampling rate,
14
V
SS
-
Digital Ground
15
V
SS
-
Digital Ground
16
PWM_L+
OUT
Left channel Positive PWM output.
17
PWM_L-
OUT
Left channel Negative PWM output.
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