u4467b ATMEL Corporation, u4467b Datasheet

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u4467b

Manufacturer Part Number
u4467b
Description
Sound Demodulator
Manufacturer
ATMEL Corporation
Datasheet

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Part Number:
U4467B
Manufacturer:
TEXAS
Quantity:
1 391
Rev. A1, 23-Apr-99
TV Sound AM Demodulator
Description
The U4467B is an integrated bipolar circuit for AM sound
demodulation used in the L– and L’ standard (France).
The IC provides the audio signal and mute switch as well.
Features
D
D
Block Diagram
Ordering Information
Gain-controlled 3-stage wideband IF amplifier
Complete alignment-free AM demodulator
without external reference circuit
IF
Extended Type Number
AM
U4467B
AGC
2
1
3
Preliminary Information
IF-Amp
13
4
Package
DIP16
Mean
REF
Figure 1.
14
V
S
The U4467B is designed for TV-, VCR- and Multimedia
applications.
D
D
D
AGC with a mean level detector
Mute switch
5-V power supply, low power consumption
AM-Det
Mute
Remarks
10
S2
U4467B
6
AF(AM)
13828
1 (7)

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u4467b Summary of contents

Page 1

... TV Sound AM Demodulator Description The U4467B is an integrated bipolar circuit for AM sound demodulation used in the L– and L’ standard (France). The IC provides the audio signal and mute switch as well. Features D Gain-controlled 3-stage wideband IF amplifier D Complete alignment-free AM demodulator without external reference circuit Block Diagram ...

Page 2

... It controls the three-stage wideband amplifier to provide a constant SIF signal to the AM demodulator. Pin Description i, i, AGC REF U4467B o, 13829 Figure 2. Pinning 2 (7) Preliminary Information AM Demodulator The alignment-free AM demodulator is realized by a syn- chronous detector ...

Page 3

... Typ. V 4.5 5 100 4.7 AGC V open mute1 V 0 mute2 I –100 mute U4467B Unit 300 V Unit K/W Max. Unit 9 rms mV rms 1 (7) ...

Page 4

... out v oAF B THD S kHz 54%: v mod U4467B 4.7 F 4.7 F Figure 3. Typ. Max. Unit 2 150 500 mV rms tbd kHz " 0.3 mA – ...

Page 5

... Figure 4. Sound IF inputs (Pins 1 and 2) 3 13796 Figure 5. AGC time constant (Pin 3) Rev. A1, 23-Apr-99 Preliminary Information 4.25 V 13795 13797 Figure 6. Internal reference voltage (Pin 4) 1. 100 1 mA Figure 7. AM output (Pin Figure 8. Mute switch (Pin 10) U4467B 3.5 V IDC 13799 3.5 V 2.6 V 13802 5 (7) ...

Page 6

... U4467B Package Information Package DIP16 Dimensions in mm Alternative (7) Preliminary Information 20.0 max 4.8 max 3.3 0.5 min 1.64 0.58 2.54 1.44 0.48 17.78 9 technical drawings according to DIN specifications 8 7.82 7.42 6.4 max 0.39 max 9.75 8.15 13015 Rev. A1, 23-Apr-99 ...

Page 7

... TEMIC Semiconductors against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with TEMIC Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone 7131 67 2594, Fax number 7131 67 2423 Rev. A1, 23-Apr-99 Preliminary Information such unintended or unauthorized use. U4467B 7 (7) ...

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