Datasheet
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ELECTRICAL CHARACTERISTICS
OPERATING CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
OPERATING CHARACTERISTICS
TPA4861
SLOS163C – SEPTEMBER 1996 – REVISED JUNE 2004
at specified free-air temperature, V
DD
= 3.3 V (unless otherwise noted)
TPA4861
PARAMETER TEST CONDITIONS UNIT
MIN TYP MAX
V
OO
Output offset voltage See
(1)
20 mV
PSRR Power supply rejection ratio (∆V
DD
/∆V
OO
) V
DD
= 3.2 V to 3.4 V 75 dB
I
DD
Supply current 2.5 mA
I
DD(SD)
Supply current, shutdown 0.6 µA
(1) At 3 V < V
DD
< 5 V the dc output voltage is approximately V
DD
/2.
V
DD
= 3.3 V, T
A
= 25°C, R
L
= 8 Ω
TPA4861
PARAMETER TEST CONDITIONS UNIT
MIN TYP MAX
THD = 0.2%, f = 1 kHz, A
V
= –2 V/V 400 mW
P
O
Output power
(1)
THD = 2%, f = 1 kHz, A
V
= –2 V/V 500 mW
B
OM
Maximum output power bandwidth Gain = –10 V/V, THD = 2% 20 kHz
B
1
Unity-gain bandwidth Open Loop 1.5 MHz
BTL f = 1 kHz, C
B
= 0.1 µF 56 dB
Supply ripple rejection ratio
SE f = 1 kHz, C
B
= 0.1 µF 30 dB
V
n
Noise output voltage
(2)
Gain = –2 V/V 20 µV
(1) Output power is measured at the output terminals of the device.
(2) Noise voltage is measured in a bandwidth of 20 Hz to 20 kHz.
at specified free-air temperature range, V
DD
= 5 V (unless otherwise noted)
TPA4861
PARAMETER TEST CONDITION UNIT
MIN TYP MAX
V
OO
Output offset voltage See
(1)
20 mV
PSRR Power supply rejection ratio (∆V
DD
/∆V
OO
) V
DD
= 4.9 V to 5.1 V 70 dB
I
DD
Supply current 3.5 mA
I
DD(SD)
Supply current, shutdown 0.6 µA
(1) At 3 V < V
DD
< 5 V the dc output voltage is approximately V
DD
/2.
V
DD
= 5 V, T
A
= 25°C, R
L
= 8 Ω
TPA4861
PARAMETER TEST CONDITIONS UNIT
MIN TYP MAX
THD = 0.2%, f = 1 kHz, A
V
= -2 V/V 1000 mW
P
O
Output power
(1)
THD = 2%, f = 1 kHz, A
V
= -2 V/V 1100 mW
B
OM
Maximum output power bandwidth Gain = -10 V/V, THD = 2% 20 kHz
B
1
Unity-gain bandwidth Open Loop 1.5 MHz
BTL f = 1 kHz, C
B
= 0.1 µF 56 dB
Supply ripple rejection ratio
SE f = 1 kHz, C
B
= 0.1 µF 30 dB
V
n
Noise output voltage
(2)
Gain = -2 V/V 20 µV
(1) Output power is measured at the output terminals of the device.
(2) Noise voltage is measured in a bandwidth of 20 Hz to 20 kHz.
3