TDA3856 Datasheet, PDF (6/17 Pages) NXP Semiconductors – Quasi-split sound processor for all standards

Philips Semiconductors
Quasi-split sound processor for all standards
Product specification
TDA3856
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
V_P1
V_I
P_tot
T_stg
T_amb
V_ESD
supply voltage (pin 21)
voltage (pins 1, 2, 5, 8, 9, 15, 17, 19, 23 and 24)
total power dissipation
storage temperature
operating ambient temperature
electrostatic handling (note 1)
all pins except pins 1, 2, 23 and 24
pins 1, 2, 23 and 24
Note to the Limiting Values
1. Equivalent to discharging a 200 pF capacitor through a 0 Ω series resistor.
MIN.
−
0
0
−25
0
MAX.
8.8
V_P
650
+150
+70
UNIT
V
V
mW
°C
°C
±500
−
V
+400
−
V
−500
−
V
CHARACTERISTICS
V_P = 5 V and T_amb = +25 °C; measurements taken in Fig.3 with f_vc = 38.9 MHz, f_SC1 = 33.4 MHz and
f_SC2 = 33.158 MHz. Vision carrier (VC) modulated with different video signals, modulation depth 100% (proportional to
10% residual carrier).
Vision carrier amplitude (RMS value) V_{i VC} = 10 mV; vision to sound carrier ratios are VC/SC1 = 13 dB and
VC/SC2 = 20 dB. Sound carriers (SC1, SC2) modulated with f = 1 kHz and deviation ∆f = 50 kHz, unless otherwise
specified.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
V_P
supply voltage (pin 21)
I_P
supply current (pin 21)
IF source control (pin 5)
4.5 5
8.8 V
48 60 72
mA
V₅
input voltage in order to obtain standards
B/G (FM) with automatic muting
B/G (FM) without muting
L (AM sound)
I₅
input current
IF input not activated (pins 1-2 or 23-24)
R_I
V_I
α_12-13
input resistance
DC input voltage (pins 1, 2 or 23, 24)
crosstalk attenuation of IF input switch
IF amplifier (pins 1-2 or 23-24)
R_I
input resistance
C_I
input capacitance
pin 5 connected
pin 5 open-circuit
pin 5 connected or
alternative measure:
22 kΩ to GND
pin 5 connected
V₅ = V_P
V₅ = 0 V
LOW set internally
note 1
2.8 −
V_P
V
−
2.8 −
V
1.3 −
2.3 V
0
−
0.8 V
−
−
100 µA
−
−
−300 µA
−
−
100 Ω
−
−
0.1 V
50 56 −
dB
1.8 2.2 −
kΩ
−
2.0 2.6 pF
June 1994
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