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參數(shù)資料
| 型號： | TDA8757AHL/21 |
| 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： | PLASTIC, HLQFP-144 |
| 文件頁數(shù)： | 3/37頁 |
| 文件大?。?/td> | 908K |
| 代理商： | TDA8757AHL/21 |
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Philips Semiconductors
TDA8757A
Triple 8-bit ADC 205 Msps
Preliminary data
Rev. 01 — 22 March 2002
11 of 37
9397 750 09549
Koninklijke Philips Electronics N.V. 2002. All rights reserved.
8.
Functional description
This triple high-speed 8-bit ADC is designed to convert RGB/YUV signals, coming
from an analog source, into digital data used by a LCD driver (pixel clock up to
205 MHz).
8.1 Analog video inputs
The RGB/YUV video inputs are externally AC coupled and are internally
DC polarized.
The synchronization signals are also used by the device for the internal PLL and the
gain calibration.
If the green video signal has composite sync (sync on green) it is possible to extract
this composite sync by connecting the green signal to pin INSOG (AC coupled). When
the sync pulse amplitude is below 300 mV, the I2C-bus bit ‘Slevel’ has to be set to
logic 1 (see Figure 5). The maximum amplitude for the sync pulse is 600 mV typical.
The composite sync is available at pin SOGO (TTL level compatible signal).
VCCO(PLL)
126
PLL output supply voltage
n.c.
127
not connected
DGND1
128
digital ground 1
OE
129
output enable; active LOW (when OE is HIGH, the outputs are
high-impedance)
PD
130
power-down control input (IC is in Power-down mode when
this pin is HIGH)
CLP
131
clamp pulse input (clamp active HIGH)
HSYNC
132
horizontal synchronization pulse input
INV
133
PLL clock output inverter control input (invert when HIGH)
CKEXT
134
external clock input
COAST
135
PLL coast control input
CKREF
136
PLL reference clock input
VCCD1
137
digital supply voltage 1
n.c.
138
not connected
AGNDPLL
139
PLL analog ground
CP
140
PLL lter input
CZ
141
PLL lter input
AGNDPLL
142
PLL analog ground
VCCA(PLL)
143
PLL analog supply voltage
n.c.
144
not connected
GNDDP
exposed die pad connection
Table 3:
Pin description…continued
Symbol
Pin
Description
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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 |
| TDA8758 | 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 |
| 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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