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參數(shù)資料
| 型號： | MAX9730ETI+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP AUDIO PWR 2.4W G 28TQFN |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 類型： | G 類 |
| 輸出類型： | 1-通道（單聲道） |
| 在某負載時最大輸出功率 x 通道數(shù)量： | 2.4W x 1 @ 8 歐姆 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 特點： | 消除爆音，差分輸入，關閉 |
| 安裝類型： | 表面貼裝 |
| 供應商設備封裝： | 28-TQFN-EP（5x5） |
| 封裝/外殼： | 28-WFQFN 裸露焊盤 |
| 包裝： | 帶卷 (TR) |
MAX9730
2.4W, Single-Supply, Class G Power Amplifier
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VCC = VCPVDD = VSHDN = 3.6V, VGND = VCPGND = 0V, RIN+ = RIN- = 10kΩ, RFB+ = RFB- = 10kΩ, RFS = 100kΩ, C1 = 4.7F, C2 =
10F; speaker load resistors (RL) are terminated between OUT+ and OUT-, unless otherwise stated; TA = TMIN to TMAX, unless other-
wise noted. Typical values are at TA = +25°C.) (Notes 1, 2)
Note 1:
All devices are 100% production tested at room temperature. All temperature limits are guaranteed by design.
Note 2:
Testing performed with resistive and inductive loads to simulate an actual speaker load. For dynamic speakers,
RL = 8Ω, 68H.
Note 3:
Designed for 1.8V logic.
Note 4:
RIN_ and RFB_ have 0.5% tolerance.
Note 5:
Amplifier inputs AC-coupled to GND.
Note 6:
Testing performed at room temperature with 8
Ω resistive load in series with 68H inductive load connected across BTL
output for speaker amplifier. Mode transitions are controlled by
SHDN. VCP is the peak output transient expressed in dBV.
Note 7:
Voltage gain is defined as: [VOUT+ - VOUT-] / [VIN+ - VIN-].
Note 8:
Mode A tone burst tested at full amplitude for one cycle and half amplitude for nine cycles. Mode B tone burst tested at
full amplitude for three cycles and half amplitude for seven cycles. Full amplitude is defined as 1% THD+N at full battery
(VCC = 4.2V). Electrical Characteristics table targets must be met at THD+N = 1% for one cycle (Mode A) and THD+N <
5% for three cycles (Mode B).
Note 9:
Dynamic range is calculated by measuring the RMS voltage difference between a -60dBFS output signal and the noise
floor, then adding 60dB. Full scale is defined as the output signal needed to achieve 1% THD+N.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Voltage Gain
AV
(Notes 4, 7)
11.5
12
12.5
dB
VCC = 5V
2.4
VCC = 4.2V
1.67
VCC = 3.6V
1.25
Continuous Output Power
POUT
THD+N = 1%, f = 1kHz,
RL = 8
Ω
VCC = 3.0V
0.8
W
VCC = 5V
7.1
VCC = 4.2V
5.9
VCC = 3.6V
5.1
f = 1kHz, 1% THD+N,
ZL = 1F + 10
Ω
VCC = 3.0V
4.2
VCC = 5V
6.5
VCC = 4.2V
5.4
VCC = 3.6V
4.7
Output Voltage
VOUT
f = 10kHz, 1% THD+N,
ZL = 1F + 10
Ω
VCC = 3.0V
3.8
VRMS
VCC = 2.7V to 5.5V
63
77
f = 217Hz, 200mVP-P ripple
77
f = 1kHz, 200mVP-P ripple
77
Power-Supply Rejection Ratio
(Note 4)
PSRR
f = 20kHz, 200mVP-P ripple
58
dB
RL = 8
Ω, VOUT = 1kHz / 400mVRMS
0.007
Total Harmonic Distortion Plus
Noise
THD+N
RL = 8
Ω, VOUT = 1kHz / 1VRMS
0.12
%
Signal-to-Noise Ratio
SNR
VOUT = 0.5VRMS, inputs to GND by C1N,
A-weighted
95
dB
22Hz to 22kHz
96
Dynamic Range
DR
(Note 9)
A-weighted
99
dB
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