U6359B Datasheet, PDF (1/6 Pages) TEMIC Semiconductors – Frequency Synthesizer for TV Tuner

Frequency Synthesizer for TV Tuner
U6359B
Description
The U6359B is a single chip PLL frequency synthesizer
with 3-wire bus control. This IC contains an integrated
preamplifier, a high frequency prescaler, a reference
frequency divider, a crystal oscillator, a phase/frequency
detector together with a charge pump, a tuning voltage
amplifier and 4 output ports.
Features
D Integrated prescaler ÷ 8 with preamplifier
D Input frequency maximum 1024 MHz
D Tuning frequency steps 62.5 kHz
D 14-bit programmable counter
D Reference oscillator with 4 MHz crystal
and ÷ 512 counter
D Phase detector (reference frequency 7.8125 kHz)
D 4 programmable port driver
D Lock output
D Microcomputer controlled via 3-wire bus
D SO20 package
Block Diagram
Enable
2
Data
3
Clock
4
RF_i ¹⁵
17
Format
control
1/8
Shiftregister / latch
18 bit
14 Bit counter
Port 1...4
11 12 13 14
Port driver
5
V_S (I²L)
8 _{GND (I2L)}
16
GND (ECL)
10
PD
Oscillator
6
7
Crystal
Ordering Information
Extended Type Number
U6359B-BFLG3
Phase
Detector
Charge
pump
1/64
1/8
20
Lock
Figure 1. Block diagram
9
VD
18
V_S (ECL)
1
Test 1
19
Test 2
12596
Package
SO20 plastic package
Remarks
Taped and reeled
TELEFUNKEN Semiconductors
1 (6)
Rev. A1, 18-Sep-96