Philips stk4048xi DATASHEETS

Ordering number: 2909A

±

θ

°

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° C

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8

Thick Film Hybrid IC

STK4048 XI

AF Power Amplifier (Split Power Supply)

(150W min, THD = 0.008%)

Features

• The use of a current mirror circuit, cascode circuit, pure
complementary circuit provides low distortion (THD=

0.008%/100kHz LPF ON).

Package Dimensions

unit: mm

4051A

[STK4048 XI ]

• Possible to design electronic supplementary circuits
(pop noise muting at the time of power ON/OFF, load
short protector, thermal shutdown)

Specifications

Maximum Ratings

Parameter Symbol Conditions Ratings Unit

Maximum supply voltage V
Thermal resistance
Junction temperature Tj 150
Operating substrate temperature T
Storage temperature Tstg

at Ta = 25 ° C

max

CC

j-c Per power Transistor 1.2

C

30 to +125

87 V

125

C/W

C
C

Recommended Operating Conditions

Parameter Symbol Conditions Ratings Unit

Recommended supply voltage V
Load resistance R

CC

L

SANYO Electric Co., Ltd. Semiconductor Business Headquarters

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

at Ta = 25 ° C

60 V

Ω

70397HA (ID) / 9148TA No. 2909—1/8

STK4048 XI

Operating Characteristics

Parameter Symbol Conditions min typ max Unit

Quiescent current Icco V

Output power Po

Total harmonic distortion THD Po = 1.0W, f = 1kHz 0.008 %
Frequency response f
Input impedance r

Output noise voltage V
Neutral voltage V

Notes. For power supply at the time of test, use a constant-voltage power

supply unless otherwise specified.

*The output noise voltage is represented by the peak value on rms

scale (VTVM) of average value indicating type. The noise voltage
waveform includes no flicker noise. For measurement of the output
noise voltage, use the specified transformer power supply shown
right.

at Ta = 25 ° C, V
R

: noninductive load

L

, f

L

H

i

*V

NO

N

= ± 60V, R

CC

= ± 72V 15 120 mA

CC

THD = 0.008%,
f = 20Hz to 20kHz

Po = 1.0W, dB 20 to 50k Hz
Po = 1.0W, f = 1kHz 55 k Ω

V

+0
–3

= ± 72V, Rg = 10k Ω

CC

= ± 72V –70 0 +70 mV

CC

= 8 Ω , VG = 40dB, Rg = 600 Ω , 100kHz LPF ON,

L

150 W

1.2 mVrms

Specified Transformer Power Supply

(Equivalent to MG250)

Equivalent Circuit

No. 2909—2/8

STK4048 XI

Sample Application Circuit:

150W min Single-Channel AF Power Amplifier

Sample Printed Circuit Pattern for Application Circuit

(Cu-foiled side)

No. 2909—3/8