- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382384 > PCM1851PJT 24-BIT, 96-kHz STEREO A/D CONVERTER WITH 6 X 2-CHANNEL MUX AND PGA PDF資料下載
參數(shù)資料
| 型號： | PCM1851PJT |
| 英文描述： | 24-BIT, 96-kHz STEREO A/D CONVERTER WITH 6 X 2-CHANNEL MUX AND PGA |
| 中文描述： | 24位，96千赫立體聲A / D轉換器6 × 2通道的MUX和PGA |
| 文件頁數(shù)： | 15/30頁 |
| 文件大小： | 370K |
| 代理商： | PCM1851PJT |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁當前第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁
PCM1850
PCM1851
SLES108
MARCH 2004
www.ti.com
15
ANALOG FRONT END
The PCM1850/1851 has a built-in analog front-end circuit, which is shown in the block diagram of Figure 22. Selection of
the multiplexer input and PGA gain is controlled by mode control via the serial port as shown in Table 2 and Table 3. The
change of the input selection and the gain selection is performed immediately after the serial control packet for the change
is sent. A popping noise or other unexpected transient response could be generated in the audio signal during channel and
gain change. Because the PCM1850/1851 has no zero-cross detection and no other buffering capability for channel and
gain change, appropriate data handling in the digital domain is recommended to control transients.
The PCM1850/1851 analog front end permits only ac input via an input capacitor; dc input is prohibited. A signal source
resistance of less than 1 k
is recommended for the V
IN
xx pins.
All unselected channel inputs are terminated V
REF
S (= 0.5 V
CC
) using a resistor, typically 57 k
.
The PCM1850/1851 employs MOUTL/R pins (pins 12 and 11) to monitor the multiplexer output. The load on these pins
must be ac-coupled and not less than 10 k
. The full-scale output level is typically 0.6 V
CC
.
PGA
(11 dB to –11 dB)
with MUX
G = –1
V
REF
S
(= 0.5 V
CC
)
LIN+
R
V
IN
L1
R
V
IN
L6
R
V
IN
L2
V
REF
1
(= 0.5 V
CC
)
R
R
MOUTL
LIN–
Figure 22. Analog Front-End Block Diagram (L-channel)
Table 2. Multiplexer Input Selection
CH2
CH1
CH0
CHANNEL
0
0
0
Mute
0
0
1
Channel 1 (default)
0
1
0
Channel 2
0
1
1
Channel 3
1
0
0
Channel 4
1
0
1
Channel 5
1
1
0
Channel 6
1
1
1
Mute
相關PDF資料 |
PDF描述 |
|---|---|
| PCM2702 | 16-Bit Stereo DIGITAL-TO-ANALOG CONVERTER with Interface |
| 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 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PCM1851PJTG4 | 功能描述:音頻模/數(shù)轉換器 IC 24-Bit Stereo ADC w/6x2 ch MUX & PGA RoHS:否 制造商:Wolfson Microelectronics 轉換速率: 分辨率: ADC 輸入端數(shù)量: 工作電源電壓: 最大工作溫度: 最小工作溫度: 安裝風格: 封裝 / 箱體: 封裝: |
| PCM1851PJTR | 功能描述:音頻模/數(shù)轉換器 IC 24-Bit Stereo ADC w/6x2 ch MUX & PGA RoHS:否 制造商:Wolfson Microelectronics 轉換速率: 分辨率: ADC 輸入端數(shù)量: 工作電源電壓: 最大工作溫度: 最小工作溫度: 安裝風格: 封裝 / 箱體: 封裝: |
| PCM1851PJTRG4 | 功能描述:音頻模/數(shù)轉換器 IC 24-Bit Stereo ADC w/6x2 ch MUX & PGA RoHS:否 制造商:Wolfson Microelectronics 轉換速率: 分辨率: ADC 輸入端數(shù)量: 工作電源電壓: 最大工作溫度: 最小工作溫度: 安裝風格: 封裝 / 箱體: 封裝: |
| PCM-186 | 功能描述:電線鑒定 Pre-Printed WM Card, Vinyl Cloth, .22" W RoHS:否 制造商:TE Connectivity / Q-Cees 產(chǎn)品:Labels and Signs 類型: 材料:Vinyl 顏色:Blue 寬度:0.625 in 長度:1 in |
| PCM1860DBT | 功能描述:ADC, Audio 24 bit 192k I2S 30-TSSOP 制造商:texas instruments 系列:- 包裝:管件 零件狀態(tài):有效 類型:ADC，音頻 分辨率（位）:24 b 采樣率（每秒）:192k 數(shù)據(jù)接口:I2S 電壓源:模擬和數(shù)字 電壓 - 電源:3 V ~ 3.6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:30-TFSOP（0.173"，4.40mm 寬） 供應商器件封裝:30-TSSOP 標準包裝:60 |
發(fā)布緊急采購，3分鐘左右您將得到回復。