SkyWave IDP-782 - HSPA Audio; Headset Microphone

IDP-782 - Hardware Guide
Parameter Min. Typical Max. Units
Speaker
Differential output voltage 4.0 4.1 4.2 V
Common mode output voltage - 1.25 - V
Output current limit - - 200 mA
Output load resistance 14 16 32 Ω
Signal to noise
(16 Ω load, input signal = 0 dBFS)
70 80 - dB
Signal to noise
(32 Ω load, input signal = 0 dBFS)
60 70 - dB
3.8.2 HSPA Audio
Parameter Condition Min. Typical Max. Units
Microphone
Microphone bias voltage - 1.5 1.55 1.6 V
Differential input voltage - 0.7 0.8 0.9 Vpp
Differential input resistance - 30 50 - kΩ
Common mode DC voltage - - 0.5 - V
Signal to noise - 75 - - dB
Bandwidth - 300 - 3900 Hz
Speaker
Output power 16 Ω load 30 50 - mW
32 Ω load - 33 3 mW
Total harmonic distortion + noise 16 Ω load, 25 mW, F=1 kHz - 0.08 - %
32 Ω load, 25 mW, F=1 kHz - 0.05 - %
Dynamic range 0 dB volume setting - 90 - dB
Power supply rejection ratio Vdd = 1.8 V 60 84 - dB
Output offset voltage - - - +3.5 mV
Capacitive drive capability 32 Ω load - 500 - pF
3.8.3 Headset Microphone
Parameter Min. Typical Max. Units
Omni-directional Electret Condenser Microphone Output
Impedance
- 2.2 - kΩ
Operating Voltage 1.5 - - V
Operating Current - - 4 mA
Operating Frequency 100 - 20000 kHz
T213, Version 02
39
© SkyWave Proprietary