TDA8784 查看數據表（PDF） - Philips Electronics
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TDA8784 Datasheet PDF : 28 Pages
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Philips Semiconductors
18 Msps, 10-bit analog-to-digital
interface for CCD cameras
Product specification
TDA8784
CHARACTERISTICS
VCCA = VCCD = 5 V; VCCO = 3 V; fCLK = 18 MHz; Tamb = 25 °C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
Supplies
VCCA
VCCD
VCCO
ICCA
ICCD
ICCO
analog supply voltage
4.75
digital supply voltage
4.75
digital outputs supply voltage
2.5
analog supply current
−
digital supply current
−
digital outputs supply current CL = 20 pF on all data outputs; −
ramp input
Digital inputs
CLOCK INPUT: CLK (REFERENCED TO DGND)
VIL
LOW-level input voltage
0
VIH
HIGH-level input voltage
2.0
IIL
LOW-level input current
VCLK = 0.8 V
−1
IIH
HIGH-level input current
VCLK = 2.0 V
−
Zi
input impedance
fCLK = 18 MHz
−
Ci
input capacitance
fCLK = 18 MHz
−
INPUTS: SHP AND SHD
VIL
LOW-level input voltage
0
VIH
HIGH-level input voltage
2.0
IIL
LOW-level input current
VIL = 0.6 V
−
IIH
HIGH-level input current
VIH = 2.2 V
−
INPUTS: SEN, SCLK, SDATA, OE, STDBY, CLPDM, CLPOB AND CLPADC
VIL
LOW-level input voltage
0
VIH
HIGH-level input voltage
2.0
Ii
input current
−2
Correlated Double Sampling (CDS)
Vi(CDS)(p-p) CDS input amplitude
−
(peak-to-peak value)
ICPCDS,INP,IND input current pins 8, 46
−2
and 47
tCDS(min)
CDS control pulses minimum fi(CDS1,2) = fCLK(pix);
12
active time
Vi(CDS) = 1200 mV (p-p)
black-to-white transition in
1 pixel (±1 LSB typ.);
fcut(CDS) = 40 MHz;
fcut(AGC) = 40 MHz
thd1
hold time INP compared to see Fig.5
−
control pulse SHP
TYP. MAX. UNIT
5
5.25 V
5
5.25 V
3
5.25 V
78
85
mA
18
20
mA
1
−
mA
−
0.8 V
−
VCCD V
−
+1
µA
−
20
µA
46
−
kΩ
1
−
pF
−
0.8 V
−
VCCD V
−6
−
µA
0
−
µA
−
0.8 V
−
VCCD V
−
+2
µA
400 1200 mV
−
+2
µA
−
−
ns
1
−
ns
1999 Sep 21
8
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