HMP8170EVAL1 INTERSIL [Intersil Corporation], HMP8170EVAL1 Datasheet - Page 23

• Manufacturer Part Number: HMP8170EVAL1
• Description: NTSC/PAL Video Encoder
• Manufacturer: INTERSIL [Intersil Corporation]

Pinout
Pin Descriptions
HSYNC
VSYNC
P0-P15
BLANK
NAME
FIELD
RESV
PIN
NC
58, 55-43,
32-27, 23,
NUMBER
38, 37
PIN
22
21
34
35
36
33
23
NTSC/PAL1
NTSC/PAL2
GND
GND
GND
GND
GND
GND
GND
VAA
VAA
VAA
VAA
VAA
OUTPUT
INPUT/
Y
C
I/O
I/O
I/O
O
I
I
I
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
Pixel input pins. See Table 1. Any pixel inputs not used should be connected to GND.
No connect pins. These pins are not used. They may be left floating or may be connected to
GND.
This pin is reserved and should be connected to GND.
FIELD output. The field output indicates that the encoder is outputting the odd or even video
field. The polarity of FIELD is programmable.
Horizontal sync input/output. As an input, this pin must be asserted during the horizontal
sync intervals. If it occurs early, the line time will be shortened. If it occurs late, the line time
will be lengthened by holding the outputs at the front porch level. As an output, it is asserted
during the horizontal sync intervals. The polarity of HSYNC is programmable. If not driven,
the circuit for this pin should include a 4-12kΩ pull up resistor connected to VAA.
Vertical sync input/output. As an input, this pin must be asserted during the vertical sync
intervals. If it occurs early, the field time will be shortened. If it occurs late, the field time will
be lengthened by holding the outputs at the blanking level. As an output, it is asserted during
the vertical sync intervals. The polarity of VSYNC is programmable. If not driven, the circuit
for this pin should include a 4-12kΩ pull up resistor connected to VAA.
Composite blanking input/output. As an input, this pin must be asserted during the horizontal
and vertical blanking intervals. As an output, it is asserted during the horizontal and vertical
blanking intervals. The polarity of BLANK is programmable. If not driven, the circuit for this
pin should include a 4-12kΩ pull up resistor connected to VAA.
HMP8170
TOP VIEW
HMP8170
(PQFP)
DESCRIPTION
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
P8
P9
P10
P11
P12
P13
GND
CLK2
VAA
CLK
P14
P15
VSYNC
HSYNC
FIELD
BLANK