STK4030V.PDF

Ordering number : EN4389A

Thick Film Hybrid IC

STK4030V

AF Power Amplifier (Split Power Supply)

(35 W min, THD = 0.08%)

Features

• Compact packaging supports slimmer set designs (up to

70 W)

• Series designed for 20 up to 100 W (200 W) and pin-

compatibility (120 to 200 W have 18 pins)

• Simpler heat sink design facilitates thermal design of

slim stereo sets

• Current mirror circuit application reduces distortion to

0.08%

• Supports addition of electronic circuits for thermal

shutdown and load-short protection circuit as well as

pop noise muting which occurs when the power supply

switch is turned on and off

Package Dimensions

unit: mm

4062

[STK4030V]

Specifications

Maximum Ratings at Ta = 25°C

Parameter

Symbol

Conditions

Ratings

Unit

Maximum supply voltage

V CC max

±45

Thermal resistance

q j-c

2.1

°C/W

Junction temperature

150

°C

Operating substrate temperature

125

°C

Storage temperature

Tstg

–30 to +125

°C

Available time for load shorted

t S *

V CC = ±30 V, R L = 8 ½ , f = 50 Hz, P O = 35 W

Note: Use a constant-voltage power supply as the test power supply unless otherwise specified.

* Use the transformer power supply shown on the next page when measuring the available time for load shorted and the output noise voltage.

Recommended Operating Conditions at Ta = 25°C

Parameter

Symbol

Conditions

Ratings

Unit

Recommended supply voltage

V CC

±30

Load resistance

R L

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN

O3096HA (OT)31593YO 5-2495 No. 4389-1/5

STK4030V

Operating Characteristics at Ta = 25°C, V CC = ±30 V, R L = 8 ½ , VG = 40 dB, Rg = 600 ½ , 100 k LPF on, R L (non-inductive)

Ratings

Parameter

Symbol

Conditions

Unit

min

typ

max

Quiescent current

I CCO

V CC = ±36 V

120

Output power

P O (1)

THD = 0.08%, f = 20 Hz to 20 kHz

P O (2)

V CC = ±27 V, THD = 0.2%, R L = 4 ½ , f = 1 kHz

Total harmonic distortion

THD

P O = 1.0 W, f = 1 kHz

0.08

Frequency response

f L , f H

P O = 1.0 W,

–3

20 to 50 k

Input resistance

r i

P O = 1.0 W, f = 1 kHz

k ½

Output noise voltage

V NO *

V CC = ±36 V, Rg = 10 k ½

1.2

mVrms

Neutral voltage

V N

V CC = ±36 V

–70

+70

Equivalent Circuit

No. 4389-2/5

STK4030V

Application Circuit: 35W min Single Channel AF Power Amplifier

Sample Printed Circuit Pattern for Application Circuit (Copper-foiled side)

No. 4389-3/5

STK4030V

Description of External Parts

R 1 , C 1 : Input filter circuit

• Reduces high-frequency noise.

C 2 : Input coupling capacitor

• DC current suppression. A reduction in reactance is effective because of increases in capacitor reactance

at low frequencies and 1/f noise dependence on signal source resistance which result in output noise

worsening.

R 2 : Input bias resistor

• Biases the input pin to zero.

• Effects V N stability (refer to NF circuit).

• Due to differential input, input resistance is more or less determined by this resistance value.

R 4 , R 5 : NFB circuit (AC NF circuit). Use of resistor with 1% error is suggested.

C 3 (R 2 )

C 3 : AC NF capacitor

R 4 , R 5 : Used for VG setting.

• VG settings are obtained using R 4 and R 5 according to the following equation:

log20 ·

R 5

40 dB is recommended.

R 4

• Low-frequency cutoff frequency settings are obtained using R 4 and C 3 according to the following

equation:

f L =

[ Hz ]

·R 4 ·C 3

When changing the VG setting, you should change R 4 which requires a recheck of the low cutoff frequency

setting. When the VG setting is changed using R 5 , the setting should ensure R 2 equals R 5 so that V N

balance stability is maintained. If the resistor value is increased more than the existing value, V N balance

may be disturbed and result in deterioration of V N temperature characteristics.

R 3 : Differential constant-current bias resistor

R 6 , R 7 : For oscillation suppression and phase compensation applications

(For use with differential stage applications)

R 7 , C 4 : For oscillation suppression and phase compensation applications

(A Mylar capacitor is recommended for C 4 for use with output stage applications)

C 6 , C 9 : For oscillation suppression and phase compensation applications

Power stage (Must be connected near the pin)

C 6 : Positive (+) power

C 9 : Negative (–) power

C 8 : For oscillation suppression and phase compensation applications

(Oscillation suppression before power step clip)

C 5 : For oscillation suppression and distortion improvement applications

R 8 , C 10 : Ripple filter circuit on positive (+) side.

R 9 , C 13 : Ripple filter circuit on negative (–) side.

C 11 , C 12 : For oscillation suppression applications

• Used for reducing power supply impedance to stable IC operation and should be connected near the IC

pin. We recommend that you use an electrolytic capacitor.

No. 4389-4/5

STK4030V

Sample Application Circuit (Protection circuit and muting circuit)

No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace

equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of

which may directly or indirectly cause injury, death or property loss.

Anyone purchasing any products described or contained herein for an above-mentioned use shall:

Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and

distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all

damages, cost and expenses associated with such use:

Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on

SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees

jointly or severally.

Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for

volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied

regarding its use or any infringements of intellectual property rights or other rights of third parties.

This catalog provides information as of October, 1996. Specifications and information herein are subject to

change without notice.

No. 4389-5/5

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