Z8623012PSG Zilog, Z8623012PSG Datasheet - Page 14

• Manufacturer Part Number: Z8623012PSG
• Description: IC SMART V-CHIP W/2ND I2C 18-DIP
• Manufacturer: Zilog
• Type: Video Decoderr

Specifications of Z8623012PSG

• Applications: Set-Top Boxes, TV
• Voltage - Supply, Digital: 4.75 V ~ 5.25 V
• Mounting Type: Through Hole
• Package / Case: 18-DIP (0.300", 7.62mm)
• Processor Series: Z8623x
• Core: Z80
• Data Bus Width: 8 bit
• Program Memory Type: CMOS
• Maximum Clock Frequency: 12 MHz
• Operating Supply Voltage: 4.75 V to 5.25 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply, Analog: -
• Lead Free Status / Rohs Status: Details

T
14
Symbol
HIN/XIN 5
V
VIDEO
CSYNC
ABLE
SS
1. P
IN
Pin #
6
7
8
D
ESCRIPTIONS
P
IN
Function
Horizontal In/XTAL In Input
Power Supply
(digital) GND
Composite Video
Composite Sync
D
ESCRIPTIONS
Z86230—PRELIMINARY
Direction
N/A
Input
Output
Description
When XTAL mode is selected, the horizontal
frequency signal may be generated on the chip
using the external 32.768-kHz crystal circuit, as
shown below. This circuit must be connected
between pin 5 and 3.
When HIN mode is selected, a horizontal
frequency signal must be supplied to the pin.
This signal must be within +3% Fh; however,
the frequency signal can exhibit any polarity
and duty cycle. Alternatively, an external
horizontal frequency signal may be used in
XIN mode operation. In this case, the signal
must exhibit a frequency of 32.768 KHz.
This pin is the lowest potential power pin for
the digital circuit that is typically tied to
system ground.
Composite NTSC video input, 1.0V p-p (nom),
band limited to 600 kHz. The circuit operates
with signal variation between 0.7–1.4V p-p.
The polarity is sync tips negative. This signal
pin should be AC-coupled through a 0.1 µF
capacitor and driven by a source impedance
of 470 ohms or less.
Sync slice level. A 0.1 µmF capacitor must be
tied between this pin and analog ground
V
level voltage.
SS
Crystal Type: 32.768 kHz, CL=12.5pF
(A). This capacitor stores the sync slice
Z86230
B
Pin 5
Pin 3
LOCK
Series Resistance < 35 kOhms
Epson, C-001R 32.768 kHz or
Fox, NC26, NC28 or equivalent
D
32.768KHz
IAGRAM AND
Y1
R2
470K
O
(18 kOhms typ)
PS000401-TVC0699
PERATIONAL
R1
22M
C2
20pF
C1
10pF
O
VERVIEW