參數(shù)資料
型號： TAS5631PHD
廠商： TEXAS INSTRUMENTS INC
元件分類： 音頻／視頻放大
英文描述： AUDIO AMPLIFIER, PQFP64
封裝： GREEN, PLASTIC, HTQFP-64
文件頁數(shù)： 34/34頁
文件大小： 1823K
代理商： TAS5631PHD
www.ti.com
SLES221C – JULY 2009 – REVISED APRIL 2010
AUDIO SPECIFICATION (PBTL)
Audio performance is recorded as a chipset consisting of a TAS5518 PWM processor (modulation index limited to 97.7%)
and a TAS5631 power stage. PCB and system configurations are in accordance with recommended guidelines. Audio
frequency = 1 kHz, PVDD_X = 50 V, GVDD_X = 12 V, RL = 2 , fS = 384 kHz, ROC = 22 k, TC = 75°C;
output filter: LDEM = 7 mH, CDEM = 1 mF, MODE = 101-00, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
RL = 2 , 10%, THD+N, clipped input signal
600
RL = 3 , 10%, THD+N, clipped input signal
400
RL = 4 , 10%, THD+N, unclipped input signal
300
PO
Power output per channel
W
RL = 2 , 1% THD+N, unclipped input signal
480
RL = 3 , 1% THD+N, unclipped input signal
310
RL = 4 , 1% THD+N, unclipped input signal
230
THD+N
Total harmonic distortion + noise
1 W
0.03%
Vn
Output integrated noise
A-weighted, TAS5518 modulator
170
mV
SNR
Signal-to-noise ratio(1)
A-weighted, TAS5518 modulator
103
dB
A-weighted, input level –60 dBFS using
DNR
Dynamic range
103
dB
TAS5518 modulator
Pidle
Power dissipation due to idle losses (IPVDD_X)
PO = 0, 4 channels switching
(2)
3.7
W
(1)
SNR is calculated relative to 1% THD-N output level.
(2)
Actual system idle losses are affected by core losses of output inductors.
ELECTRICAL CHARACTERISTICS
PVDD_X = 50V, GVDD_X = 12 V, VDD = 12V, TC (case temperature) = 75°C, fS = 384 kHz, unless otherwise specified.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
INTERNAL VOLTAGE REGULATOR AND CURRENT CONSUMPTION
Voltage regulator, only used as reference
VREG
VDD = 12 V
3
3.3
3.6
V
node, VREG
VI_CM
Analog comparator reference node, VI_CM
1.5
1.75
1.9
V
Operating, 50% duty cycle
22.5
IVDD
VDD supply current
mA
Idle, reset mode
22.5
50% duty cycle
12.5
IGVDD_x
Gate-supply current per half-bridge
mA
Reset mode
1.5
50% duty cycle without output filter or
19.5
mA
load
IPVDD_x
Half-bridge idle current
Reset mode, no switching
750
mA
OUTPUT-STAGE MOSFETs
Drain-to-source resistance, low side (LS)
TJ = 25°C, excludes metallization
60
100
m
resistance,
RDS(on)
Drain-to-source resistance, high side (HS)
60
100
m
GVDD = 12 V
Copyright 2009–2010, Texas Instruments Incorporated
9
Product Folder Link(s): TAS5631
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