TEA6200 Philips Semiconductors (Acquired by NXP), TEA6200 Datasheet - Page 8

• Manufacturer Part Number: TEA6200
• Description: Integrated am Upconversion Receiver
• Manufacturer: Philips Semiconductors (Acquired by NXP)

Philips Semiconductors
Notes to the characteristics
1. The prestage is connected to the aerial by a 6 MHz low-pass filter that decouples unwanted aerial cable resonance
2. To protect the demodulator and the AGC circuitry, against parasitic oscillation in the IF section, a ceramic filter is
August 1989
Large signal handling
Aerial input voltage
AGC range of preamplifier
switch
Switching threshold
Hysteresis
Ripple rejection of preamplifier 20 Hz < f
AGC
AGC range
Change of V
AGC start
Intermodulation free
Long wave
Medium wave
Integrated AM upconversion receiver
second order
third order
second order
third order
dynamic range
frequencies. The large dynamic range of the prestage is achieved by use of a transimpedance amplifier with a
feedback loop consisting of an equivalent aerial capacitance and a feedback capacitor. When large RF signals are
received the feedback capacitance in the loop is increased and the gain subsequently reduced, (see Fig.4).
Voltage gain for small signals
Voltage gain for large signals
connected between the IF output and detector input.
PARAMETER
af
THD = 10%;
modulation = 80%
modulation = 80%
modulation = 80%
100 V < V
350/250 kHz
input noise level
= 99 dBm
input noise level
= 99 dBm
650/1550 kHz
input noise level
= 104 dBm
1.25/1.4 MHz
input noise level
= 104 dBm
CONDITIONS
G
G
R
V
V
< 1.5 MHz
rf
=
=
< 2 V
V
V
rf
rf
------------------- -
C
C
---------
C
1
ae
C
1
+
ae
V
V
V
V
I MFDR 2
I MFDR 3
I MFDR 2
I MFDR 3
C
SYMBOL
rf
rf
rf
rf
8
2
------------ -
V
V
20
P
2
1.5
30
72
74
MIN.
3
12
320
3.5
40
95
2
50
82
86
84
90
TYP.
5.5
3
80
MAX.
Product specification
TEA6200
V
dB
mV
dB
dB
dB
dB
dB
dB
dB
dB
V
UNIT