U2860B-M Datasheet, PDF (5/14 Pages) ATMEL Corporation – Dual-Channel FM Sound Demodulator for TV Systems

U2860B-M
Electrical Characteristics
V_S = 5 V, T_amb = 25° C, reference point pin , unless otherwise specified
Parameters
Test Conditions
Pin
Symbol
Min.
Typ.
DC Supply (Pin 13)
Supply voltage range
Supply current
Intercarrier Input 1 (Pin 1)
V_S
4.5
5.0
I_S
27
DC input voltage
Input resistance⁽¹⁾
Input limiting voltage
Intercarrier Input 2, Pin 14
Input signal v_in:
f = 5.5 MHz
output signal AF1:
v_AF1 = -3 dB
V_DC
1.75
R_in
680
v_lim
DC input voltage
Input resistance⁽¹⁾
Input limiting voltage
Input signal for automatic
second sound carrier mute off
(squelch)
Input signal v_in:
f = 5.74 MHz
output signal AF2:
v_AF2 = -3 dB
Audio output AF2 active
V_DC
1.75
R_in
680
v_lim
v_in
> 0.7
1.0
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
Oscillator shift (free-running)
as function of supply voltage
4.5 V < V_S < 5.5 V
∆f_VCO
200
Adjustment range of
free-running frequencies
By external resistor R_ref at
pin 10
∆f_adj
±1
Adjustment resistance for
free-running frequencies
R_ref
15
22
FM Demodulators, Internal VCO’s (Pin 10)
Steepness of free-running
frequency adjustment
Resistor R_ref at pin 10
S
200
Capture range of PLL’s
Holding range of PLL’s
Audio Outputs, AF1 (Pin 7) and AF2 (Pin 6)
∆f_cap
∆f_hold
±1.4
±1.9
±2.0
±3.0
DC output voltage
V_DC
2.2
DC output current
Output resistance⁽¹⁾
I_DC
1.0
R_out
150
AC output peak current
i_AC
Note: 1. This parameter is given as an application information and not measured during final testing.
Max.
Unit
9.0
V
33
mA
V
750
Ω
150
µV
V
750
Ω
150
µV
< 1.5
mV
MHz
kHz
kHz
MHz
30
kΩ
kHz/kΩ
MHz
MHz
V
-1.3
mA
Ω
±1.0
mA
5
4794A–TVVCR–02/04