HMP8117 Datasheet, PDF (38/45 Pages) Intersil Corporation – NTSC/PAL Video Decoder

Pinout
HMP8117
80 LEAD PQFP
TOP VIEW
AGND
V _AA
AGND
NC
CVBS3(Y)
CVBS2
CVBS1
Y _IN
Y _OUT
AGND
AGND
V _AA
NC
V _AA
AGND
AGND
A/D_TEST
NC
C
NC
AGND
AGND
AGND
AGND
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
1
64
2
63
3
62
4
61
5
60
6
59
7
58
8
57
9
56
10
55
11
54
12
53
13
52
14
51
15
50
16
49
17
48
18
47
19
46
20
45
21
44
22
43
23
42
24
41
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
P15
P14
GND
VBIVALID
P13
V_CC
P12
P11
P10
P9
P8
GND
V_CC
P7
P6
P5
P4
P3
GND
P2
INTREQ
P1
P0
SCL
Pin Descriptions
PIN
NAME
CVBS1,
CVBS2,
CVBS3(Y)
PIN
NUMBER
7, 6, 5
YOUT
9
YIN
8
C
19
A/D TEST
17
RSET
28
REF_CAP
78
I/O
PASSIVE
DESCRIPTION
Composite Video Inputs. CVBS3(Y) is the Luminance (Y) signal in S-Video mode. These
I
75Ω Term,
1µF AC-coupled
inputs must each be terminated by a 75Ω resistor to AGND and AC-coupled by a 1.0µF
capacitor as shown in the Reference Schematic. These components should be as close to
this pin as possible for best performance. If not used, this pin should be connected to AGND
through a 0.1µF capacitor.
Analog output of the video multiplexer. A external low-pass anti-alias filter between the
O _{External Anti-} YOUT and YIN pins, as shown in the Reference Schematic. The filter components should
Alias Filter ^{be as close as possible to the YOUT and YIN pins for best performance.}
I
Analog input to the ADC. See YOUT description above.
75Ω Term, Chrominance (C) S-Video input. This input must each be terminated by a 75Ω resistor to
1µF AC-coupled AGND and AC-coupled by a 1.0µF capacitor as shown in the Reference Schematic. These
I
and
components, and the corresponding anti-alias low-pass filter, should be as close to this pin
External Anti- as possible for best performance. If not used, this pin should be connected to AGND
Alias Filter through a 0.1µF capacitor.
O
none
Chroma signal A/D test pin. This pin must be left floating for proper operation.
A 12.1KΩ resistor must be connected between this pin and AGND. This resistor should be
O
12.1KΩ
to AGND
as close to this pin as possible for best performance. The function of this pin has changed
from the HMP8112A/15 GAIN_CNTRL input. Do not use capacitor decoupling for this output
pin.
O
1.0 F
to AGND
Voltage reference capacitor. A 1 F ceramic capacitor must be connected between this pin
and AGND. This capacitor should be as close to this pin as possible for best performance.
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