SSM2518CBZ-R7 datasheet(5/48 Pages) AD

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Data Sheet

SSM2518

Rev. A | Page 5 of 48

SPECIFICATIONS

All specifications at PVDD = 5.0 V, DVDD = 1.8 V, fS = 48 kHz, MCLK = 128 × fS, TA = 25°C, RL = 8 Ω + 15 μH, LP_MODE = 0, volume

control = 0 dB, unless otherwise noted.

PERFORMANCE SPECIFICATIONS

Table 1.

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

DEVICE CHARACTERISTICS

f = 1 kHz, BW = 20 kHz

Output Power

RL = 4 Ω, THD = 1%, PVDD = 5.0 V

RL = 4 Ω, THD = 10%, PVDD = 5.0 V

2.5

RL = 8 Ω, THD = 1%, PVDD = 5.0 V

1.42

RL = 8 Ω, THD = 10%, PVDD = 5.0 V

1.8

RL = 4 Ω, THD = 1%, PVDD = 3.6 V

1.3

RL = 4 Ω, THD = 10%, PVDD = 3.6 V

1.7

RL = 8 Ω, THD = 1%, PVDD = 3.6 V

0.75

RL = 8 Ω, THD = 10%, PVDD = 3.6 V

0.94

RL = 4 Ω, THD = 1%, PVDD = 2.5 V

0.4

RL = 4 Ω, THD = 10%, PVDD = 2.5 V

0.45

RL = 8 Ω, THD = 1%, PVDD = 2.5 V

0.275

RL = 8 Ω, THD = 10%, PVDD = 2.5 V

0.35

Efficiency

PO = 1.4 W, 8 Ω, PVDD = 5.0 V, normal operation

PO = 1.4 W, 8 Ω, PVDD = 5.0 V, ultralow EMI operation

THD + N

PO = 0.5 W into 8 Ω each channel, f = 1 kHz, PVDD = 5 V

0.04

Total Harmonic Distortion

Plus Noise

PO = 0.25 W into 8 Ω each channel, f = 1 kHz, PVDD = 3.6 V

0.03

Channel Separation

XTALK

PO = 1 W, f = 1 kHz, PVDD = 5 V

108

Average Switching Frequency

fSW

280

kHz

Differential Output Offset

VOOS

2.0

Power Supply Rejection Ratio

PSRRDC

PVDD = 2.5 V to 5.0 V

PSRRGSM

VRIPPLE = 100 mV rms at 217 Hz, dither input

PSRRGSM

VRIPPLE = 100 mV rms at 217 Hz, no input

100

Supply Current

IPVDD

Dither input, no load, PVDD = 5.0 V

4.7

PVDD

Dither input, no load, PVDD = 3.6 V

4.4

Dither input, no load, PVDD = 2.5 V

3.8

Software power-down, SD = 1.8 V, SPWDN = 1, PVDD = 3.6 V

μA

Hardware power-down, SD = 0 V, PVDD = 3.6 V

100

DVDD

IDVDD

Dither input, no load, DVDD = 3.3 V

3.0

Dither input, no load, DVDD = 1.8 V

1.5

Dither input, no load, DVDD = 1.8 V, fS = 8 kHz

0.25

Software power-down, SD = 1.8 V, SPWDN = 1, DVDD = 1.8 V

2.5

μA

Hardware power-down, SD = 0 V, DVDD = 1.8 V

100

Output Noise Voltage

PVDD = 5 V, f = 20 Hz to 20 kHz, dither input, A-weighted

μV

PVDD = 3.6 V, f = 20 Hz to 20 kHz, dither input, A-weighted

μV

Signal-to-Noise Ratio

SNR

A-weighted, referred to 0 dBFS, PVDD = 3.6 V

Mute Attenuation

Soft mute on

100

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