Datasheet

Data Sheet SSM2603
Rev. C | Page 3 of 32
SPECIFICATIONS
T
A
= 25°C, AVDD = DVDD = 3.3 V, HPVDD = 3.3 V, 1 kHz signal, f
S
= 48 kHz, PGA gain = 0 dB, 24-bit audio data, unless otherwise noted.
Table 1.
Parameter Min Typ Max Unit Conditions
RECOMMENDED OPERATING CONDITIONS
Analog Voltage Supply (AVDD) 1.8 3.3 3.6 V
Digital Core Power Supply 1.5 3.3 3.6 V
Digital I/O Supply 1.8 3.3 3.6
Ground (AGND, PGND, DGND) 0 V
POWER CONSUMPTION
Power-Up
Stereo Record (1.5 V and 1.8 V) 7 mW
Stereo Record (3.3 V) 22 mW
Stereo Playback (1.5 V and 1.8 V) 7 mW
Stereo Playback (3.3 V) 22 mW
Power-Down 40 μW
LINE INPUT
Input Signal Level (0 dB) 1 × AVDD/3.3 V rms
Input Impedance 200 kΩ PGA gain = 0 dB
10 kΩ PGA gain = +33 dB
480 kΩ PGA gain = −34.5 dB
Input Capacitance
10
pF
Signal-to-Noise Ratio (A-Weighted) 70 90 dB PGA gain = 0 dB, AVDD = 3.3 V
84 dB PGA gain = 0 dB, AVDD = 1.8 V
THD + N −80 dB −1 dBFS input, AVDD = 3.3 V
−75 dB −1 dBFS input, AVDD = 1.8 V
Channel Separation 80 dB
Programmable Gain −34.5 0 +33 dB
Gain Step 1.5 dB
Mute Attenuation −80 dB
MICROPHONE INPUT
Input Signal Level 1 × AVDD/3.3 V rms
Signal-to-Noise Ratio (A-Weighted) 85 dB Microphone gain = 0 dB (R
EXT
= 40 kΩ)
Total Harmonic Distortion −70 dB −1 dBFS input, 0 dB gain
Power Supply Rejection Ratio 50 dB
Mute Attenuation
80
dB
Input Resistance 10 kΩ
Input Capacitance 10 pF
MICROPHONE BIAS
Bias Voltage 0.75 × AVDD V
Bias Current Source 3 mA
Noise in the Signal Bandwidth 40 nV/√Hz 20 Hz to 20 kHz
LINE OUTPUT
1
Full-Scale Output 1 × AVDD/3.3 V rms
Signal-to-Noise Ratio (A-Weighted) 85 100 dB AVDD = 3.3 V
94 AVDD = 1.8 V
THD + N
−80
−70
dB
AVDD = 3.3 V
−75 AVDD = 1.8 V
Power Supply Rejection Ratio 50 dB
Channel Separation 80 dB