Document
Ordering number: EN 2133B
Thick Film Hybrid IC
STK4036V AF Power Amplifier (Split Power Supply) (50W min, THD = 0.08%)
Features
• Small-sized package permitting audio sets to be made slimmer (up to 700W) • The STK4024V series are available for output 20W to 100W(200W) and are pin-compatible. (120W to 200W: 18 pins) • Facilitates thermal design of slim stereo sets. • Distortion 0.08% due to current mirror circuit • Possible to design electronic supplementary circuits (pop noise muting at the time of power ON/OFF, load short protector, thermal shutdown)
Package Dimensions
unit: mm
4062
[STK4036V]
Specifications
Maximum Ratings at Ta = 25°C
Parameter Maximum supply voltage Thermal resistance Junction temperature Operating substrate temperature Storage temperature Available time for load short-circuit Symbol VCC max θj-c Tj Tc Tstg ts* VCC = ±35V, RL = 8Ω, f = 50Hz, PO = 50W Conditions Ratings ±52 1.8 150 125 −30 to +125 2 Unit V °C/W °C °C °C s
Recommended Operating Conditions at Ta = 25°C
Parameter Recommended supply voltage Load resistance Symbol VCC RL Conditions Ratings ±35 8 Unit V Ω
SANYO Electric Co., Ltd. Semiconductor Business Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
60697HA (ID) / N148TA / 9208MO,TS No. 2133—1/9
STK4036V
Operating Characteristics at Ta = 25°C, VCC = ±35V, RL = 8Ω, VG = 40dBf = 1kHz, Rg = 600Ω,
100kHz-LPF ON, RL: noninductive load
Parameter Quiescent current Symbol ICCO PO(1) Output power PO(2) Total harmonic distortion Frequency response Input impedance Output noise voltage Neutral voltage THD fL, fH ri VNO** VN Conditions VCC = ±42V THD = 0.08%, f = 20Hz to 20kHz VCC = ±31V, THD = 0.2%, RL = 4Ω, f = 1kHz PO = 1.0W, f = 1kHz PO = 1.0W,
+0 −3 dB
min 15 50 55 – – – – −70
typ – – – – 20 to 50k 55 – 0
max 120 – – 0.08 – – 1.2 +70
Unit mA W W % Hz kΩ mVrms mV
PO = 1.0W, f = 1kHz VCC = ±42V, Rg = 10kΩ VCC = ±42V
Note:
For Power supply at the time of test, use a constant-voltage power supply unless otherwise specified. * For measurement of the available time for load short-circuit and output noise voltage, use the specified transformer power supply shown right. ** 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.
Specified Transformer Power Supply (Equivalent to MG-200)
Equivalent Circuit
No. 2133—2/9
STK4036V
Sample Application Circuit: 50W min AF Power Amplifier
Sample Printed Circuit Pattern for Application Circuit (Cu-foiled side)
No. 2133—3/9
Voltage gain, VG - dB
Total harmonic distortion, THD - %
Output power, Po - W
Input voltage, Vi - mV
Output power, Po - W
Frequency, f - Hz Output power, Po - W Output power, Po - W Frequency, f - Hz
STK4036V
Quiescent current, ICCO - mA
Total harmonic distortion, THD - %
Operating substrate temperature, Tc -°C
No. 2133—4/9
Quiescent Neutral voltage, current,V Icco - mA N - mV
Voltage gain, VG - dB
IC power dissipation,, Pd - W
Quiescent current, ICCO - mA
Supply voltage, VCC - V
Output power, Po - W
Frequency, f - Hz Quiescent Neutral voltage, current,V Icco - mA N - mV IC power dissipation,, Pd - W Output power, Po - W Supply voltage, VCC - V Output power, Po - W
STK4036V
Current drain, ICC - mA
Frequency, f - Hz
No. 2133—5/9
STK4036V
Output noise voltage, VNO - mVrms
Current drain, ICC - mA
Output power, Po - W
Signal source resistance, Rg - Ω
Description of External Parts
R1, C1: C2:
Input filter circuit • Used to reduce noise at high frequencies. Input coupling capacitor • Used to block DC current. When the reactance of the capacitor increases at low frequencies, the dependence of 1/f noise on signal source resistance causes the output noise to worsen. It is better to decrease the reactance.
R2:
Input bias resistor • Used to bias the input pin to zero. • Affects VN stability. (See NF circuit.) • Because of differential input, this resistor fixes the input resistance practically. NFB circuit (AC NF circuit). It is desirable that the error of the resistor value is 1% or less.
R4, R5:
No. 2133—6/9
STK4036V C3 (R2)
C3: R4, R5:
Capacitor for AC NF Used to set VG
• VG setting obtained by using R4, R5
log R - 40dB is recommended. ⋅ ----R
(C4: A polyester film capacitor is recommended.) C6, C9: Used for oscillation blocking and phase compensation Power amp stage (Must be connected near the pin) C6: Power amp on (+) side C9: Power amp on (–) side C8: Used for oscillation blocking and phase compensation (Used for oscillation blocking before clip at power amp stage) C5: R8, C10: R9, R13: Used for oscillation blocking and distortion improvement Ripple filter circuit on (+) side Ripple filter circuit on (–) side
• Low cutoff frequency setting obtained by using R4, C3.
f L = ---------------------------- [ Hz ] π⋅R ⋅C
To change VG setting, it is desirable to change R4. In this case, the low cutoff frequency setting needs to be rechecked. When VG s.