TDA7088T Datasheet, PDF (2/16 Pages) NXP Semiconductors – FM receiver circuit for battery supply

Philips Semiconductors
FM receiver circuit for battery supply
Product specification
TDA7088T
FEATURES
• Equipped with all stages of a mono receiver from
antenna to audio output
• Mute circuit
• Search tuning with a single varicap diode
• Mechanical tuning with integrating AFC
• AM application supported
• Power supply polarity protection
• Power supply voltage down to 1.8 V.
GENERAL DESCRIPTION
The TDA7088T is a bipolar integrated circuit for use in
mono portable and pocket radios. It is used when a
minimum of peripheral components (of small dimensions
and low costs) is important. The circuit contains a
frequency-locked-loop (FLL) system with an Intermediate
Frequency (IF) of about 70 kHz. Selectivity is achieved by
active RC-filters. De-tuning related to the IF and too weak
input signals is suppressed by the mute circuit.
APPLICATIONS
• Mechanical tuning; this is possible with or without
integrating AFC circuit
• Electrical tuning; this is realized by one directional
(band-up) search tuning facility, including RESET to the
lower-band limit.
QUICK REFERENCE DATA
SYMBOL
V_P
I_P
f_iRF
V_i(rms)
V_o(rms)
T_amb
PARAMETER
CONDITIONS
supply voltage
supply current
radio input frequency
RF sensitivity input voltage
(RMS value)
signal handling
audio output signal (RMS
value)
V_oAF = −3 dB; V_oAF = 0 dB
at V_i = 1 mV; mute off
∆f = ±75 kHz; THD < 10%
R_L = 22 kΩ
operating ambient temperature
MIN.
1.8
4.2
0.5
−
100
60
−10
TYP.
3
5.2
−
3
200
85
−
MAX.
5
6.6
110
6
UNIT
V
mA
MHz
µV
−
mV
120
mV
+70
°C
ORDERING INFORMATION
TYPE
NUMBER
TDA7088T
NAME
SO16
PACKAGE
DESCRIPTION
plastic small outline package; 16 leads; body width 3.9 mm
VERSION
SOT109-1
1996 May 14
2