TDA7278 STMicroelectronics, TDA7278 Datasheet - Page 9

• Manufacturer Part Number: TDA7278
• Description: Audio DSPs CD Actuator Driver
• Manufacturer: STMicroelectronics

Specifications of TDA7278

• Mounting Style: SMD/SMT
• Package / Case: PQFP-44
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SUGGESTED VALUES FOR OUTPUT FILTER AND COMPENSATION NETWORK
PINS: 1, 2, 44
44
1
2
12V
DC- DC COVERTER
CONFIGURATIONS
TRANSFORMER
STEP-DOWN
STEP-UP
AND
VHIGH
VHIGH
D96AU447A
OUTPUT FILTER (see fig. 3)
+
-
L = 47 H
C = 47 F
L = 47 H
C = 47 F
L = 11 H
C = 47 F
PINS: 8, 7,9
8
7
9
12V
a) DOMINANT POLE
b) 2 ZERO, 2 POLE
a) DOMINANT POLE
c) 2 ZERO, 3 POLE
c) 2 ZERO, 3 POLE
R = 50K
Cf = 47nF
R4 = 35K
R2 = 11.18K
R3 = 100 K
C2 = 936pF
Rf = 16.65K
Cf = 5.6nF
R4 = 70K
R = 100K
Cf = 220nF
R4 = 70K
R1 = 500
C1 = 18nF
R2 = 20.8K
R3 = 250K
C2 = 636pF
Rf = 21.4K
Cf = 7.44nF
R4 = 200K
R1 = 500
C1 = 18nF
R2 = 10.4K
R3 = 250K
C2 = 318pF
Rf = 21.4K
Cf = 3.7nF
R4 = 200K
COMPENSATION (see fig. 4)
VHIGH
VHIGH
D96AU448A
TDA7278
+
-
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