TDA8742 Datasheet, PDF (9/21 Pages) NXP Semiconductors – Satellite sound circuit with noise reduction

Philips Semiconductors
Satellite sound circuit with noise reduction
Product specification
TDA8742; TDA8742H
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
V_P
V_n
V_n
V_n
T_stg
T_amb
PARAMETER
CONDITIONS MIN.
supply voltage
note 1
0
voltage level on pins 2, 4, 6, 8, 10, 12, 14 and note 2
0
16 (1, 3, 5, 7, 9, 11, 40 and 42)
voltage on pins 3, 5, 11, 13, 15, 17, 20, 21, note 2
0
23 to 26, 31, 33, 35, 37, 40, 41, and 42 (6, 8,
10, 13, 16, 17, 19, 20 to 22, 27, 29, 31, 33,
36, 37, 38, 41 and 43)
voltage on pins 7, 18, 19, 27 to 30, 32, 36, 38 note 1
0
and 39 (2, 14, 15, 23 to 26, 28, 32, 34 and 35)
storage temperature
−55
operating ambient temperature
−20
MAX.
13.2
1
9
V_P
+150
+70
UNIT
V
V
V
V
°C
°C
Notes
1. All voltages referenced to ground pins 9 and 34 (4 and 30).
2. All voltages referenced to ground pins 9 and 34 (4 and 30). These voltages must not exceed V_P or maximum value
at any time.
THERMAL CHARACTERISTICS
SYMBOL
R_{th j-a}
PARAMETER
thermal resistance from junction to ambient in free air
SDIP42
QFP44
VALUE
53
69
UNIT
K/W
K/W
DC CHARACTERISTICS
All voltages referenced to ground at pins 9 and 34 (4 and 30). Measured in test circuit Fig.4; V_P = 12 V; T_amb = 25 °C;
∆f_M = ∆f_S1 = ∆f_S2 = 0 kHz (no modulation); f_OM = 6.5 MHz; f_OS1 = 10.52 MHz; f_OS2 = 10.7 MHz; HF level at pin 18 (14):
40 mV (RMS); HF level at selected secondary inputs: 20 mV (RMS); MCS = logic 0 [V₇ (V₂) = 0 V];
SCD = logic 0 [V₁₁ (V₆) = 0 V]; unless otherwise specified.
SYMBOL
PARAMETER
MIN. TYP. MAX. UNIT
V_P
supply voltage
8.0
12
13.2 V
I_P
supply current
−
38
45
mA
P_tot
total power dissipation
−
−
600
mW
V_n
voltage on pins 20, 21, 23, 24, 25, 27, 28, 30, 32, 33, 35, 36 −
3.8
−
V
and 38 (16, 17, 19, 20, 21, 23, 24, 26, 28, 29, 31, 32 and 34)
V_REF
input reference voltage on pin 19 (15)
3.7
3.8
3.9
V
V_n
voltage on pins 2, 4, 6, 8, 10, 12, 14 and 16 (1, 3, 5, 7, 9, 11, −
0
−
V
40 and 42)
V_CDCL,CDCR voltage on pins 40 and 42 (36 and 38)
−
2.7
−
V
V_CDCM
voltage on pin 41 (37)
−
2.8
−
V
I_IN3
input current at pin 18 (14)
−
−
1
µA
October 1994
9