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U4488B Datasheet, PDF (3/9 Pages) TEMIC Semiconductors – Quasi-Split Sound Circuit and AM Demodulator | |||
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U4488B
Pin Description
Pin
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 1, 2
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 3
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 4
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 5
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 6
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 7
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 8, 9
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 10
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 11
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 12
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 13
14
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 15, 16
Symbol
Vi1, IF
CAGC
CREF
LF
Vo,AM
Vsw,AGC
VVCO
Vsw,mute
Vsw, IF
Vo,FM
GND
VS
Vi2, IF
Function
IF input 1 (symmetrical)
Capacitor for AGC time constant
Capacitor for internal reference
voltage
Loop filter
AF output (AM sound)
Standard switch
VCO circuit
Mute switch
IF input switch IF1 / IF2
Intercarrier output (FM sound)
Ground
Supply voltage (5 V)
IF input 2 (symmetrical)
Vi1,IF 1
16 Vi2,IF
Vi1,IF 2
15 Vi2,IF
CAGC 3
14 VS
CREF 4
LF 5
U4488B
13 GND
12 Vo,FM
Vo,AM 6
11 Vsw,IF
Vsw,AGC 7
10 Vsw,mute
VVCO 8
9 VVCO
13791
Figure 2. Pinning
Absolute Maximum Ratings
Reference point Pin 13, unless otherwise specified
Parameters
Symbol
Value
Unit
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Supply voltage range
Pin 14
VS
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Supply current
Pin 14
IS
Power dissipation (VS = 9 V)
P
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Output currents
Pins 6 and 12
Iout
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ External voltages
Pins 1, 2, 3, 4, 6, 12, 15 and 16
4.5 to 9.0
V
55
mA
500
mW
5
mA
+ 4.5
V
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Pins 5, 8 and 9
Vext
+ 3.5
V
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Pins 7, 10 and 11
VS
V
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Junction temperature
Tj
+125
°C
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Operating temperature range
Tamb
0 to +85
°C
Storage temperature
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Electrostatic handling *
all pins
Tstg
VESD
"â25 to +125
300
°C
V
W *) Equivalent to discharging a 200-pF capacitor through a 0- resistor
Thermal Resistance
Parameters
Junction ambient when soldered to PCB
Symbol
RthJA
Value
60
Unit
K/W
TELEFUNKEN Semiconductors
3 (9)
Rev. A2, 15-Jan-98
Preliminary Information
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