Diodes PAM8007 - Manual (Page 4)

PAM8007
Document number: DSxxxxx Rev. 1 - 2
4 of 17
www.diodes.com
October 2012
© Diodes Incorporated
PAM8007
A Product Line of
Diodes Incorporated
Thermal Information
Parameter Package Symbol Max Unit
Thermal Resistance (Junction to Ambient)
SSOP-24
θ
JA
90
°C/W
SOP-24 79.2
Thermal Resistance (Junction to Case)
SSOP-24
θ
JC
32
SOP-24 27
Electrical Characteristics
(@T
A
= +25°C, V
DD
= 5V, Gain = 24dB, R
L
= 8Ω, unless otherwise specified.)
Parameter Symbol Test Conditions Min Typ Max Units
Class D Stage
Supply Voltage Range
V
DD
2.5 5.5 V
Quiescent Current I
Q
No Load 12 16 mA
Output Offset Voltage V
OS
No Load 10 50 mV
Drain-Source On-State Resistance R
DS(ON)
I
DS
= 0.5A
P MOSFET 0.23
Ω
N MOSFET 0.17
Output Power P
O
THD+N = 10%
f = 1kHz R
L
= 8Ω 1.55 1.75
W
R
L
= 4Ω 2.85 3.1
THD+N
R
L
= 8Ω, P
O
= 1W, f = 1KHz 0.12
%
Total Harmonic Distortion Plus Noise R
L
= 4Ω, P
O
= 2W, f = 1KHz 0.15
Power Supply Ripple Rejection PSRR Input AC-GND, f = 1KHz, V
PP
= 200mV 63 dB
Channel Separation CS V
O
= 1V
RMS
, f = 1KHz -88 dB
Oscillator Frequency f
OSC
200 250 300 kHz
Efficiency η
P
O
= 1.75W, f =1 kHz, R
L
= 8Ω 85 92 %
P
O
= 3.0W, f =1 kHz, R
L
= 4Ω 80 88 %
Noise V
N
Input AC-GND
Gain = 12dB A-Weighting 65
µV
No A-Weighting 90
Signal Noise Ratio SNR f = 20 – 20kHz, THD = 1% 84 dB
Earphone Stage
Output Power P
O
THD+N = 1%, R
L
= 32Ω, f = 1kHz 69 mW
Total Harmonic Distortion Plus Noise THD+N R
L
= 32Ω, P
O
= 10mW, f = 1kHz 0.04 %
Power Supply Ripple Rejection PSRR Input AC-GND, f = 1kHz, V
PP
= 200mV 73 dB
Channel Separation CS V
O
= 1V
RMS
, f = 1kHz 95 dB
Noise V
N
Input
AC-GND A-Weighting 19
µV
No A-Weighting 25
Signal Noise Ratio SNR f = 20 – 20kHz, THD = 1% 97 dB
Control Section
Mute Current I
MUTE
V
MUTE
= 0V 8 12 mA
Shutdown Current I
SHDN
V
SHDN
= 0V 20 µA
SHDN Input High V
SH
1.5
V
SHDN Input Low V
SL
0.4
MUTE Input High V
MH
1.5
V
MUTE Input Low V
ML
0.4
Line/Ear Input High V
DH
2.5
V
Line/Ear Input Low V
DL
0.4
Over Temperature Protection OTP 150 °C
Over Temperature Hysteresis OTH 30 °C