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參數(shù)資料
| 型號(hào)： | U6359B-BFLG3 |
| 英文描述： | Frequency Synthesizer for TV Tuner |
| 中文描述： | 頻率合成器的電視調(diào)諧器 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 89K |
| 代理商： | U6359B-BFLG3 |
U6359B
TELEFUNKEN Semiconductors
Rev. A1, 18-Sep-96
1 (6)
Frequency Synthesizer for TV Tuner
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
Integrated prescaler
÷
8 with preamplifier
Input frequency maximum 1024 MHz
Tuning frequency steps 62.5 kHz
14-bit programmable counter
Reference oscillator with 4 MHz crystal
and
÷
512 counter
Phase detector (reference frequency 7.8125 kHz)
4 programmable port driver
Lock output
Microcomputer controlled via 3-wire bus
SO20 package
Block Diagram
Shiftregister / latch
18 bit
Port driver
Format
control
14
13
12
11
Phase
Detector
14 Bit counter
Charge
pump
1/8
3
2
4
15
17
1/8
Oscillator
20
7
6
5
8
16
10
9
18
1
19
Enable
Data
Clock
RF
i
Crystal
Lock
V
S
(I
2
L)
GND (ECL)
PD
VD
V
S
(ECL)
Test 1
Test 2
Port 1...4
12596
GND (I
2
L)
1/64
Figure 1. Block diagram
Ordering Information
Extended Type Number
U6359B-BFLG3
Package
Remarks
SO20 plastic package
Taped and reeled
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