U2860BB Datasheet, PDF (5/11 Pages) TEMIC Semiconductors – Dual-Channel FM Sound Demodulator for TV Systems

U2860B-B
Parameters
Test Conditions / Pins
Symbol Min.
Typ.
Max.
FM demodulators, internal VCO’s
Pin 10
Steepness of free-running Resistor R_ref at Pin 10
S
200
frequency adjustment
Capture range of PLL’s
Holding range of PLL’s
Audio outputs, AF1 (Pin 7) and AF2 (Pin 6)
∆f_cap
±1.4
±1.9
∆f_hold
±2.0
±3.0
DC output voltage
DC output current
Output resistance
AC output peak current
AF output voltage,
RMS value
Difference between the
output signals
See note 1
v_in = 10 mV,
f = 5.5 MHz,
FM-dev. = 27 kHz,
f_mod = 1 kHz
V_DC
I_DC
R_out
i_AC
v_AF
∆v_AF
2.2
1.0
–1.3
150
±1.0
500
±1
Total harmonic distortion
v_in = 10 mV,
f = 5.5 MHz,
THD
0.1
0.5
AM suppression
Crosstalk attenuation
between the AF outputs
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%
f = 50 Hz to 12.5 kHz
a_AM
46
66
a_att
70
Supply voltage ripple
V_RR < 200 mV, f = 70 Hz
RR
24
rejection
Mute switch
Pin 3
Control voltage - muteoff AF outputs active
V_mute
2.0
V_S
- mute on AF outputs not active
0
0.8
Control current
Squelch function
I_mute
150
Pin 4
Control voltage for
automatic mute-2nd carrier
“off”
automatic mute-2nd carrier
“on”
Control current
V_sque
0
0.8
2.0
V_S
I_sque
150
Notes
1.) _{This parameter is given as an application information and not measured during final testing.}
Unit
kHz/kW
MHz
MHz
V
mA
W
mA
mV
dB
%
dB
dB
dB
V
V
mA
V
V
mA
TELEFUNKEN Semiconductors
5 (11)
Rev. A1, 17-Jun-96
Preliminary Information