參數(shù)資料
型號： LX1722CDB
英文描述： AudioMAX Products
中文描述： AudioMAX產(chǎn)品
文件頁數(shù)： 4/14頁
文件大?。?/td> 357K
代理商： LX1722CDB
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 4
Copyright
2000
Rev. 0.1b,2001-09-19
W
M
.
C
AudioMAX
LX1721 / 1722
Class-D Stereo Power Amplifier Controller
P
RELIMINARY
L I N F I N I T Y D I V I S I O N
E L E C T R I C A L C H A R A C T E RI S T I C S
Unless otherwise specified, the following specifications apply over the operating ambient temperature 0°C < TA < 70°C.
Test conditions: RPWM = 34.8k, CPWM = 100pF, VDD = PVDD = 15V
LX1721 / 1722
Typ
Parameter
Symbol
Test Conditions
Min
Max
Units
Evaluation Module (See Figure 2)
Supply Voltage
LX1721
7
15
LX1722
V
DD
V
IN
= 15V, V
RIPPLE
= 1V
RMS
, 20Hz
to 20kHz
V
IN
= 15V, R
L
=4
, THD+N=1%,
10Hz to 22kHz
V
IN
= 25V, R
L
=4
, THD+N=1%,
10Hz to 22kHz
V
IN
= 15V, f
IN
= 1kHz, P
O
= 10W
7
25
V
Power Supply Rejection Ratio
PSRR
-70
dB
25
Output Power (Per Channel)
P
O
60
W
82
Efficiency
V
IN
= 15V, f
IN
= 1kHz, P
O
= 20W
85
%
f
IN
= 1kHz, P
O
= 1W
.06
Total Harmonic Distortion Plus Noise
THD+N
f
IN
= 20Hz to 20kHz, P
O
= 1W
R
L
= 4
, P
O
= 1W
.2
%
Signal-To-Noise Ratio
Oscillator Section
SNR
81
dBr
Oscillator Frequency
F
OSC
I
CHG
335
kHz
μ
A
μ
A
V
Charge Current
(varies with V
DD
pin voltage)
-110
Discharge Current
I
DIS
(varies with V
DD
pin voltage)
110
Oscillator Peak Voltage
V
PK
(varies with V
DD
pin voltage)
3.4
Oscillator Valley Voltage
V
VAL
(varies with V
DD
pin voltage)
1.6
V
Voltage Stability
V
DD
= 8V to 25V
T
A
= 0
O
C to 70
O
C
T
A
= -40
O
C to 125
O
C
0.6
2
%
1.0
2
%
Temperature Stability
1.5
%
Error Amplifier
Input Offset Voltage
V
IO
A
OL
5
‘
mV
DC Open Loop Gain
60
dB
Unity Gain Bandwidth
UGBW
I
OUT
= -100
μ
A
I
OUT
= +100
μ
A
7
‘
mHz
High Output Voltage
V
OH
V
REF
–1
V
Low Output Voltage
V
OL
50
‘
mV
Input Common Mode Range
Input Bias Current
Input Amplifier
I
IN
V
IN
= 1V to V
REF
1
μ
A
Stage Gain
Set by Internal Resistors
I
OUT
= -100
μ
A
I
OUT
= +100
μ
A
3.465
3.5
3.535
V/V
Output Voltage, High
V
OH
3.85
V
Output Voltage, Low
V
OL
1.3
‘
mV
‘
k
Input Impedance
42
E
L
E
C
T
R
I
C
A
L
S
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參數(shù)描述
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LX1725ILQ 功能描述:IC AMP AUDIO 32W STER D 32MLPQ RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:AudioMAX™ 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機，2-通道（立體聲） 在某負載時最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點:I²C，麥克風(fēng)，靜音，短路保護，音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR)
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