U2860B-M Datasheet, PDF (6/14 Pages) ATMEL Corporation – Dual-Channel FM Sound Demodulator for TV Systems

Electrical Characteristics (Continued)
V_S = 5 V, T_amb = 25° C, reference point pin , unless otherwise specified
Parameters
Test Conditions
Pin
Symbol
Min.
Typ.
Max.
Unit
AF output voltage, RMS value
Difference between the output
signals
v_in = 10 mV
f = 5.5 MHz
FM-dev. = 27 kHz
f_mod = 1 kHz
v_AF
∆v_AF
500
mV
±1
dB
Total harmonic distortion
AM suppression
v_in = 10 mV
f = 5.5 MHz
FM-dev. = 27 kHz
f_mod = 1 kHz
v_in = 10 mV
f = 5.5 MHz
f_mod = 1 kHz
reference signal:
FM-dev. = 50 kHz
test signal: m = 30%
THD
0.1
0.5
%
α_AM
46
66
dB
Crosstalk attenuation between
the AF outputs
f = 50 Hz to 12.5 kHz
α_att
70
dB
Supply voltage ripple rejection
Mute Switch (Pin 3)
V_RR < 200 mV, f = 70 Hz
RR
24
dB
Control voltage
- mute off
- mute on
AF outputs active
AF outputs not active
V_mute
2.0
0
V_S
V
0.8
V
Control current
Squelch Function, (Pin 4)
I_mute
150
µA
Control voltage for
automatic mute 2nd carrier
- off
- on
V_sque
0
2.0
0.8
V
V_S
V
Control current
I_sque
150
µA
Note: 1. This parameter is given as an application information and not measured during final testing.
6 U2860B-M
4794A–TVVCR–02/04