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參數(shù)資料
| 型號： | TDA8757CHV/17 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | ADC |
| 英文描述： | 3-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP144 |
| 封裝： | 20 X 20 MM, 1.40 MM HEIGHT, PLASTIC, SOT-612-1, HLQFP-144 |
| 文件頁數(shù)： | 13/38頁 |
| 文件大小： | 894K |
| 代理商： | TDA8757CHV/17 |
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Philips Semiconductors
TDA8757C
Triple 8-bit ADC 205 Msps
Preliminary data
Rev. 01 — 14 August 2002
20 of 38
9397 750 10111
Koninklijke Philips Electronics N.V. 2002. All rights reserved.
Pins SW1 (pin 130) and SW2 (pin 129) are controlled by the I2C-bus and command
external devices such as Video Switch by setting bits SW1 and SW2 respectively in
register FINEG.
9.1.4
Control register
COAST and HSYNC signals can be derived by setting the I2C-bus control bits ‘Vlevel’
and ‘Hlevel’ respectively. When bits ‘Vlevel’ and ‘Hlevel’ are set to zero, COAST and
HSYNC are active HIGH.
Bit ‘Edge’ denes the rising or falling edge of CKREF to synchronize the PLL. It will
be on the rising edge if the bit is a logic 0 and on the falling edge if the bit is at logic 1.
Bits ‘Up’ and ‘Do’ are used for the test, to force the charge pump current. These bits
have to be logic 0 during normal use.
Bit ‘Cken’ is used for the test to check the CKADC internal signal. This bit has to be
logic 0 during normal use.
Bits ‘Ip0’, ‘Ip1’ and ‘Ip2’ control the charge pump current, to increase the bandwidth of
the PLL, as shown in Table 8.
The default programmed value is as follows:
Charge pump current = 700
A
Bits ‘Up’ and ‘Do’ are used for testing, normally they are set to logic 0
Rising edge of CKREF: bit ‘Edge’ at logic 0
COAST and HSYNC inputs are active HIGH: bits ‘Vlevel’ and ‘Hlevel’ at logic 0.
Table 8:
Charge pump current control
Ip2
Ip1
Ip0
Current (
A)
0
6.25
0
1
12.5
01025
01150
100100
101200
110400
111700
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA8757HL | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Triple 8-bit ADC 170 Msps |
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| TDA8758G | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:YC 8-bit low-power analog-to-digital video interface |
| TDA8759HV/8/C1 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 3X8-BITS VIDEO ADC 110MSPS RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| TDA8759HV/8/C1,551 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 3X8-BITS VIDEO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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