U2860BB Datasheet, PDF (4/11 Pages) TEMIC Semiconductors – Dual-Channel FM Sound Demodulator for TV Systems

U2860B-B
Operating Range
Parameters
Supply voltage range
Pin 13
Ambient temperature
Symbol
Value
Unit
V_S
4.5 to 9.0
V
T_amb
0 to +85
°C
Thermal Resistance
Parameters
Junction ambient when soldered to PCB
Symbol
R_thJA
Value
90
Unit
K/W
Electrical Characteristics
V_S = 5 V, T_amb = 25_C, reference point Pin 12, unless otherwise specified
Parameters
Test Conditions / Pins
Symbol Min.
Typ.
Max.
Unit
DC-supply
Pin 13
Supply voltage range
V_S
4.5
5.0
9.0
V
Supply current
Intercarrier input 1
I_S
Pin 1
27
33
mA
DC input voltage
V_DC
Input resistance
See note 1
R_in
Input limiting voltage
Input signal v_in:
v_lim
f = 5.5 MHz
output signal AF1:
v_AF1 ⇒ –3 dB
Intercarrier input 2
Pin 14
1.75
V
680
750
W
150
mV
DC input voltage
Input resistance
Input limiting voltage
Input signal for automatic
second sound carrier “mute
See note 1
Input signal v_in:
f = 5.74 MHz
output signal AF2:
v_AF2 ⇒ –3 dB
Audio output AF2 active
V_DC
1.75
V
R_in
v_lim
680
750
W
150
mV
v_in
> 0.7
1.0
< 1.5
mV
off” (squelch)
FM demodulators, internal VCO’s
Pin 10
Free-running frequency
Oscillator drift
(free-running) as function
of temperature
∆T = 55°C
f_VCO
5.5
∆f_VCO
500
MHz
kHz
Oscillator shift
4.5 V < V_S < 5.5 V
∆f_VCO
200
kHz
(free-running) as function
of supply voltage
Adjustment range of
By external resistor R_ref at
∆f_adj
±1
MHz
free-running frequencies Pin 10
Adjustment resistance for
R_ref
15
22
30
kW
free-running frequencies
4 (11)
TELEFUNKEN Semiconductors
Preliminary Information
Rev. A1, 17-Jun-96