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PDF ( 数据手册 , 数据表 ) U4224B-CFL

零件编号 U4224B-CFL
描述 Time Code Receiver
制造商 TEMIC Semiconductors
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U4224B-CFL 数据手册, 描述, 功能
Time Code Receiver
U4224B
Description
The U4224B is a bipolar integrated straight through receiver circuit in the frequency range of 40 to 80 kHz.
The device is designed for radio controlled clock applications.
Features
D Very low power consumption
D Very high sensitivity
D High selectivity by using two crystal filters
D Power down mode available
D Only a few external components necessary
D Digitalized serial output signal
D AGC hold mode
Block Diagram
GND 3
VCC 1
PON
15
Power Supply
TCO
16
93 7727 e
Decoder
11 FLB
10 FLA
9 DEC
IN 2
AGC
Amplifier
4 5 6 13
SB Q1A Q1B Q2A
14
Q2B
Rectifier & 12 SL
Integrator
7
REC
8
INT
TELEFUNKEN Semiconductors
Rev. A3, 02-Apr-96
1 (17)







U4224B-CFL pdf, 数据表
U4224B
Test Circuit (for Fundamental Function)
Ivcc
Iin
1M
VCC
3V
Vd
1.657V
300k
Ipon
Test point: DVM with high and low input
line for measuring of a voltage Vxx or a
current lxx by conversion into a voltage.
Stco
Vtco
Spon
1M
82p
1M
Isl
TCO PON Q2B Q2A
Ssl
U4224B
100k
SL
Sdec
10M
VCC STABILISATION
DECODING FLB
AGC-
AMPLIFIER
IN
RECTIFIER
FLA
100M
DEC
Idec
Vdec
GND SB Q1A Q1B REC INT
~
Vin
82p 680p 3.3 n 420k
Vrec Srec
Ssb Sint
Vsb 1M
10M
10M
Vint
Vrec Vint
Isb
Irec Iint
94 8384 e
8 (17)
TELEFUNKEN Semiconductors
Rev. A3, 02-Apr-96







U4224B-CFL equivalent, schematic
U4224B
Dimensions in mm
Package: SO 16 L
94 8961
16 (17)
TELEFUNKEN Semiconductors
Rev. A3, 02-Apr-96










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