tda1072a NXP Semiconductors, tda1072a Datasheet - Page 8

• Manufacturer Part Number: tda1072a
• Description: Am Receiver Circuit
• Manufacturer: NXP Semiconductors

Philips Semiconductors
APPLICATION INFORMATION
May 1984
Unwanted signals
Suppression of i.f. whistles at
I.F. suppression at r.f. input
Residual oscillator signal at mixer output
AM receiver circuit
V
a.f. signal of m = 30%
at f
at f
for symmetrical input
for asymmetrical input
at f
at 2
(1) Capacitor values depend on crystal type.
(2) Coil data: 9 windings of 0,1 mm dia laminated Cu wire on TOKO coil set 7K 199CN; Q
i
= 15 V; m = 0% related to
i
i
osc
2
3
f
osc
f
f
if
if
PARAMETER
Fig.2 Oscillator circuit using quartz crystal; centre frequency = 27 MHz.
8
I
I
1(osc)
1(2osc)
2if
3if
if
if
SYMBOL
o
80.
MIN.
TYP.
1,1
37
44
40
40
1
Product specification
TDA1072A
MAX.
UNIT
dB
dB
dB
dB
A
A