參數(shù)資料
型號(hào)： TLV990BPFB
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP48
封裝： PLASTIC, TQFP-48
文件頁(yè)數(shù)： 16/22頁(yè)
文件大小： 287K
代理商： TLV990BPFB
TLV990B
3-V, 10-BIT, 28-MSPS AREA CCD AND VIDEO SIGNAL PROCESSOR
SLAS327– FEBRUARY 2001
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME
NO.
ADCCLK
25
I
ADC clock input
ADDOS
34
I
A dc offset is added to video input signal when the ADDOS is pulled low.
AGND1
44
Analog ground for internal CDS circuits
AGND2
4
Analog ground for internal PGA circuits
AGND3
20
Analog ground for internal DAC circuits
AGND4
32
Analog ground for internal ADC circuits
AGND5
37
Analog ground for internal REF circuits
AVDD1
43
Analog supply voltage for internal CDS circuits, 3 V
AVDD2
3
Analog supply voltage for internal PGA circuits, 3 V
AVDD3
19
Analog supply voltage for internal DAC circuits, 3 V
AVDD4
33
Analog supply voltage for internal ADC circuits, 3 V
AVDD5
41
Analog supply voltage for internal ADC circuits, 3 V
BLKG
36
I
Control input. The CDS operation is disabled when the BLKG is pulled low.
CLCCD
47
I
CCD signal clamp control input
CCDIN
1
I
CCD input
CLREF
48
O
Clamp reference voltage output
CLVDO
35
I
Video-signal clamp-control input. Only used in manual clamping mode. Active low.
CS
28
I
Chip select. A logic low on this input enables the serial port.
D0 – D9
7–16
O
10-bit 3-state ADC output data or offset DACs test data
DACO1
21
O
Digital-to-analog converter output1
DACO2
22
O
Digital-to-analog converter output2
DGND
5
Digital ground
DIGND
18
Digital interface circuit ground
DIVDD
17
Digital interface circuit supply voltage, 1.8 V– 4.4 V
DVDD
6
Digital supply voltage, 3 V
OBCLP
31
I
Optical black level and offset calibration control input. Active low.
OE
24
I
Output data enable. Active low.
RBD
38
O
Internal bandgap reference for external decoupling
RESET
29
I
Hardware-reset input, active low. This signal forces a reset of all internal registers
RMD
39
O
Ref– output for external decoupling
RPD
40
O
Ref+ output for external decoupling
SDIN
27
I
Serial data input to configure the internal registers
SCKP
23
I
Selects the polarity of SCLK. 0 – active low (high when SCLK is not running), 1 – active high (low when
SCLK is not running)
SCLK
26
I
Serial clock input. This clock synchronizes the serial data transfer.
SR
45
I
CCD reference level sample clock input
STBY
30
I
Hardware power-down control input, active low
SV
46
I
CCD signal level sample clock input
VIDEOIN
2
I
Analog video signal input
VSS
42
Silicon substrate, normally connected to analog ground
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