SSM2301CPZ-REEL7 datasheet(3/16 Pages) AD | Filterless High Efficiency Mono 1.4W Class-D Audio Amplifier

部件名	SSM2301CPZ-REEL7

功能描述	Filterless High Efficiency Mono 1.4W Class-D Audio Amplifier

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SSM2301

Rev. A | Page 3 of 16

SPECIFICATIONS

VDD = 5.0 V, TA = 25oC, RL = 8 Ω + 33 μH, unless otherwise noted.

Table 1.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

DEVICE CHARACTERISTICS

Output Power

PO

VDD = 5.0 V, RL = 8 Ω, THD = 1%

f = 1 kHz, 20 kHz BW

1.22

W

VDD = 5.0 V, RL = 8 Ω, THD = 10%

f = 1 kHz, 20 kHz BW

1.52

W

VDD = 3.6 V, RL = 8 Ω, THD = 1%

f = 1 kHz, 20 kHz BW

590

mW

VDD = 3.6 V, RL = 8 Ω, THD = 10%

f = 1 kHz, 20 kHz BW

775

mW

VDD = 2.5 V, RL = 8 Ω, THD = 1%

f = 1 kHz, 20 kHz BW

275

mW

VDD = 2.5 V, RL = 8 Ω, THD = 10%

f = 1 kHz, 20 kHz BW

345

mW

Efficiency

η

POUT = 1.4 W, 8 Ω, VDD = 5.0 V

85

%

Total Harmonic Distortion + Noise

THD + N

PO = 1 W into 8 Ω, f = 1 kHz, VDD = 5.0 V

0.1

%

PO = 0.5 W into 8 Ω, f = 1 kHz, VDD = 3.6 V

0.04

%

Input Common-Mode Voltage Range

VCM

1.0

VDD − 1.0

V

Common-Mode Rejection Ratio

CMRRGSM

VCM = 2.5 V ± 100 mV at 217 Hz

55

dB

Average Switching Frequency

fSW

1.8

MHz

Differential Output Offset Voltage

VOOS

G = 6 dB; G = 12 dB

2.0

mV

POWER SUPPLY

Supply Voltage Range

VDD

Guaranteed from PSRR test

2.5

5.0

V

Power Supply Rejection Ratio

PSRR

VDD = 2.5 V to 5.0 V, dc input floating/ground

70

85

dB

PSRRGSM

VRIPPLE = 100 mV at 217 Hz, inputs are ac grounded,

CIN = 0.01 μF, input referred

63

dB

Supply Current

ISY

VIN = 0 V, no load, VDD = 5.0 V

4.2

mA

VIN = 0 V, no load, VDD = 3.6 V

3.5

mA

VIN = 0 V, no load, VDD = 2.5 V

2.9

mA

Shutdown Current

ISD

SD = GND

20

nA

GAIN CONTROL

Closed-Loop Gain

AV0

GAIN pin = 0 V

6

dB

AV1

GAIN pin = VDD

12

dB

Differential Input Impedance

ZIN

SD = VDD, SD = GND

150

kΩ

210

kΩ

SHUTDOWN CONTROL

Input Voltage High

VIH

ISY ≥ 1 mA

1.2

V

Input Voltage Low

VIL

ISY ≤ 300 nA

0.5

V

Turn-On Time

tWU

SD rising edge from GND to VDD

30

ms

Turn-Off Time

tSD

SD falling edge from VDD to GND

5

μs

Output Impedance

ZOUT

SD = GND

>100

kΩ

NOISE PERFORMANCE

Output Voltage Noise

en

VDD = 2.5 V to 5.0 V, f = 20 Hz to 20 kHz, inputs are

ac grounded, sine wave, AV = 6 dB, A weighting

35

μV

Signal-to-Noise Ratio

SNR

POUT = 1.4 W, RL = 8 Ω

98

dB

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