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參數資料
| 型號： | PCM2702 |
| 英文描述： | 16-Bit Stereo DIGITAL-TO-ANALOG CONVERTER with Interface |
| 中文描述： | 16位立體聲數字模擬轉換器的接口 |
| 文件頁數： | 11/11頁 |
| 文件大小： | 117K |
| 代理商： | PCM2702 |
11
PCM2702
Play, Stop, and Detach sequence
When host finishes or aborts audio playback, the PCM2702
will stop playing after the last transmitted audio data has
been received. Figure 6 shows the operation sequence for
play, stop, and detach.
PLYBCK, SSPND, AND ZERO FLAG
PLYBCK, SSPND, and Zero flag in Figures 4, 5, and 6 are
defined as follows.
PLYBCK
—while PCM audio input data is playing back,
PLYBCK (pin 10) is switched LOW.
Detach
1ms
4ms
23ms
(1024/f
S
)
SOF
SOF
SOF
SOF
SOF
SOF
Audio Data
Last Audio Data
Audio Data
V
BUS
D+/D–
PLYBCK
SSPND
ZERO
V
OUT
L
V
OUT
R
FIGURE 6. Play, Stop, and Detach.
SSPND
—upon detection of a suspend state on the USB port,
SSPND (pin 11) is switched LOW.
ZERO
—if the PCM audio input data is continuously zero
for 1024 sampling periods (1/f
S
), ZERO (pin12) is switched
to HIGH.
TEST PINS
The PCM2702 has four test pins—TEST0 (pin 16), TEST1
(pin 15), TEST2 (pin 14), and TEST3 (pin 13)—which are
used solely for testing at the factory. These pins must be
connected to a digital ground for proper operation.
XTI
V
DD
C
DGNDC
V
DD
DGND
D+
D–
V
BUS
DGNDU
PLYBCK
SSPND
ZERO
TEST3
TEST2
XTO
V
CC
P
AGNDP
V
CC
L
AGNDL
V
OUT
L
V
CC
V
COM
AGND
V
OUT
R
AGNDR
V
CC
R
TEST0
TEST1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
PCM2702
R
2
R
3
R
4
X
12MHz
C
2
C
1
C
3
+3.3V
+5V
C
4
C
6
C
8
C
7
C
5
USB Series
“B” Connector
POST
LPF
L-Channel
POST
LPF
R-Channel
+
NOTE:
C
1
, C
: 10pF to 33pF (depending on Crystal Resonator);
C
3
,C
4
: 0.1
μ
F
1-100
μ
F
;
C
to C
: 0.1
μ
F Ceramic each and two
1
μ
F to 100
μ
F for 5V and 3.3V;
C
9
: 10
μ
F;
R
1
: 1.5k
; R
2
, R
3
: 22
; R
4
: 1M
;
X
1
: Crystal Resonator (fundamental mode, parallel resonant).
C
9
FIGURE 7. Typical Connection Diagram.
相關PDF資料 |
PDF描述 |
|---|---|
| PCM2702E | 16-Bit Stereo DIGITAL-TO-ANALOG CONVERTER with Interface |
| PCM3000 | Stereo Audio CODEC 18-BITS, SERIAL INTERFACE TM |
| PCM3000E | Stereo Audio CODEC 18-BITS, SERIAL INTERFACE TM |
| PCM3001 | Stereo Audio CODEC 18-BITS, SERIAL INTERFACE TM |
| PCM3001E | Stereo Audio CODEC 18-BITS, SERIAL INTERFACE TM |
相關代理商/技術參數 |
參數描述 |
|---|---|
| PCM2702E | 功能描述:音頻數/模轉換器 IC 16-Bit Stereo DAC w/USB Ifc RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| PCM2702E | 制造商:Texas Instruments 功能描述:SEMICONDUCTOR ((NW)) |
| PCM2702E/2K | 功能描述:音頻數/模轉換器 IC 16-Bit Stereo DAC w/USB Ifc RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| PCM2702E/2KG4 | 功能描述:音頻數/模轉換器 IC 16-Bit Stereo DAC w/USB Ifc RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| PCM2702EG | 功能描述:音頻數/模轉換器 IC 16-Bit Stereo DAC w/USB Ifc RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
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