CXA1691BM/BS
FM/AM Radio
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Description
CXA1691BM
CXA1691BS
CXA1691BM/BS is a one-chip FM/AM radio IC
designed for radio-cassette tape recorders.
28 pin SOP (Plastic)
30 pin SDIP (Plastic)
Features
• Small number of peripheral components.
• Low current consumption (VCC=3 V)
For FM : ID=5.8 mA (Typ.)
For AM : ID=4.7 mA (Typ.)
• Built-in FM/AM select switch.
• Large output of AF amplifier.
VCC=6 V, EIAJ output=500 mW (Typ.)
when load impedance 8 Ω
Absolute Maximum Ratings (Ta=25 °C)
• Supply voltage
• Operating temperature Topr
• Storage temperature
• Allowable power dissipation
VCC
14
V
–10 to +60
°C
Tstg –50 to +125 °C
Function
PD
700
(CXA1691BM)
1000 mW
(CXA1691BS)
mW
FM section
• RF amplifier, Mixer and OSC
(incorporating AFC variable capacitor).
• IF amplifier
PD
• Quadrature detection
• Tuning LED driver
AM section
Recommended Operating Conditions
Supply voltage
VCC
2 to 7.5
(CXA1691BM)
2 to 8.5
(CXA1691BS)
V
• RF amplifier, Mixer and OSC (with RF AGC)
• IF amplifier (with IF AGC)
• Detector
VCC
V
• Tuning LED driver
AF section
• Electronic volume control
• FM muting
Structure
Bipolar monolithic IC
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any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
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E99215-TE
SONY [ SONY CORPORATION ]
