Global Mixed-mode Technology Inc.
(AC Operation Characteristics, V
DD
= 3.3V, T
A
=+25°C, R
L
= 4Ω, unless otherwise noted)
PARAMETER
SYMBOL
CONDITIONS
THD = 1%, BTL, R
L
= 4Ω
THD = 1%, BTL, R
L
= 8Ω
THD = 10%, BTL, R
L
= 4Ω
THD = 10%, BTL, R
L
= 8Ω
THD = 1%, SE, R
L
= 4Ω
THD = 1%, SE, R
L
= 8Ω
THD = 10%, SE, R
L
= 4Ω
THD = 10%, SE, R
L
L = 8Ω
THD = 0.5%, SE, R
L
= 32Ω
P
O
= 1.6W, BTL, R
L
= 4Ω
P
O
= 1W, BTL, R
L
= 8Ω
P
O
= 75mW, SE, R
L
= 32Ω
V
I
= 1V, RL = 10KΩ, G = 1
G = 1, THD 1%
R
L
= 4Ω, Open Load
f = 120Hz
f = 1kHz
G1420
MIN
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TYP
0.8
0.5
1
0.6
230
140
290
180
43
270
100
20
10
20
60
75
85
80
80
85
2
90
55
MAX
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UNIT
W
Output power (each channel) see Note
P
(OUT)
mW
Total harmonic distortion plus noise
Maximum output power bandwidth
Phase margin
Power supply ripple rejection
Mute attenuation
Channel-to-channel output separation
Line/HP input separation
BTL attenuation in SE mode
Input impedance
Signal-to-noise ratio
Output noise voltage
THD+N
B
OM
PSRR
m%
kHz
°
dB
dB
dB
dB
dB
MΩ
dB
µV (rms)
ZI
V
n
P
O
= 500mW, BTL
Output noise voltage
Note :Output power is measured at the output terminals of the IC at 1kHz.
Ver: 1.5
Aug 04, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
3
GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
