- 您現在的位置：買賣IC網 > PDF目錄382384 > PCM1850 24-BIT, 96-kHz STEREO A/D CONVERTER WITH 6 X 2-CHANNEL MUX AND PGA PDF資料下載
參數資料
| 型號： | PCM1850 |
| 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： | 13/30頁 |
| 文件大小： | 370K |
| 代理商： | PCM1850 |
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頁當前第13頁第14頁第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
13
SYSTEM CLOCK
The PCM1850/1851 supports 256 f
S
, 384 f
S
, 512 f
S,
and 768 f
S
as the system clock, where f
S
is the audio sampling
frequency. The system clock must be supplied on SCKI (pin 7).
The PCM1850/1851 has a system clock detection circuit which automatically senses if the system clock is operating at
256 f
S
, 384 f
S
, 512 f
S
or 768 f
S
in slave mode. In master mode, the system clock frequency must be selected by mode control
via the serial port. The 768-f
S
system clock is not available in master mode or for f
S
= 88.2 kHz and 96 kHz in the slave
mode. The system clock is divided into 128 f
S
and 64 f
S
automatically, and these frequencies are used to operate the digital
filter and the delta-sigma modulator, respectively.
Table 1 shows the relationship of typical sampling frequency to system clock frequency, and Figure 20 shows system clock
timing.
Table 1. Sampling Frequency and System Clock Frequency
SAMPLING RATE FREQUENCY
(kHz)
SYSTEM CLOCK FREQUENCY (MHz)
256 f
S
8.192
11.2896
12.288
16.384
22.5792
24.576
384 f
S
12.288
16.9344
18.432
24.576
33.8688
36.864
512 f
S
16.384
22.5792
24.576
32.768
45.1584
49.152
768 f
S (1)
24.576
33.8688
36.864
49.152
—
—
32
44.1
48
64
88.2
96
(1)
Slave mode only
t
(SCKH)
SCKI
t
(SCKL)
2.0 V
0.8 V
H
L
SYMBOL
PARAMETER
MIN
MAX
UNIT
t
SCKH
t
SCKL
System clock pulse duration, HIGH
8
ns
System clock pulse duration, LOW
8
ns
Figure 20. System Clock Timing
相關PDF資料 |
PDF描述 |
|---|---|
| PCM1851 | 24-BIT, 96-kHz STEREO A/D CONVERTER WITH 6 X 2-CHANNEL MUX AND PGA |
| PCM1851PJT | 24-BIT, 96-kHz STEREO A/D CONVERTER WITH 6 X 2-CHANNEL MUX AND PGA |
| 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 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| PCM-1850-06 | 制造商:Distributed By MCM 功能描述:6 ft DB9 Serial Cable Female to Female |
| PCM-1850-10 | 制造商:Distributed By MCM 功能描述:10 ft DB9 Serial Cable Female to Female |
| PCM1850APJT | 功能描述:音頻模/數轉換器 IC 24-Bit Audio ADC RoHS:否 制造商:Wolfson Microelectronics 轉換速率: 分辨率: ADC 輸入端數量: 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: |
| PCM1850APJTG4 | 功能描述:音頻模/數轉換器 IC 24B Stereo Audio ADC RoHS:否 制造商:Wolfson Microelectronics 轉換速率: 分辨率: ADC 輸入端數量: 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: |
| PCM1850APJTR | 功能描述:音頻模/數轉換器 IC 24-Bit Audio ADC RoHS:否 制造商:Wolfson Microelectronics 轉換速率: 分辨率: ADC 輸入端數量: 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: |
發布緊急采購，3分鐘左右您將得到回復。