User Manual

VS1003
4 CHARACTERISTICS & SPECIFICATIONS
4.3 Analog Characteristics
Unless otherwise noted: AVDD=2.85V, CVDD=2.5V, IOVDD=-2.8V, TA=-25..+70
◦
C,
XTALI=12.288MHz, DAC tested with 1307.894 Hz full-scale output sinewave, measurement
bandwidth 20..20000 Hz, analog output load: LEFT to GBUF 30Ω, RIGHT to GBUF 30Ω. Mi-
crophone test amplitude 50 mVpp, f=1 kHz, Line input test amplitude 2.2 Vpp, f=1 kHz.
Parameter Symbol Min Typ Max Unit
DAC Resolution 18 bits
Total Harmonic Distortion THD 0.1 0.3 %
Dynamic Range (DAC unmuted, A-weighted) IDR >90 dB
S/N Ratio (full scale signal) SNR 70
5
83
4
dB
Interchannel Isolation (Cross Talk) 50 75 dB
Interchannel Isolation (Cross Talk), with GBUF 40 dB
Interchannel Gain Mismatch -0.5 ±0.2 0.5 dB
Frequency Response -0.1 0.1 dB
Full Scale Output Voltage (Peak-to-peak) 1.3 1.5
1
1.7 Vpp
Deviation from Linear Phase 5
◦
Analog Output Load Resistance AOLR 16 30
2
Ω
Analog Output Load Capacitance 100 pF
Microphone input amplifier gain MICG 26 dB
Microphone input amplitude 50 140
3
mVpp AC
Microphone Total Harmonic Distortion MTHD 0.02 0.10 %
Microphone S/N Ratio MSNR 50
5
68 dB
Line input amplitude 2200 2800
3
mVpp AC
Line input Total Harmonic Distortion LTHD 0.015 0.10 %
Line input S/N Ratio LSNR 60
5
86 dB
Line and Microphone input impedances 100 kΩ
Typical values are measured of about 5000 devices of Lot 4234011, Week Code 0452.
1
3.0 volts can be achieved with +-to-+ wiring for mono difference sound.
2
AOLR may be much lower, but below Typical distortion performance may be compromised.
3
Above typical amplitude the Harmonic Distortion increases.
4
Unweighted, A-weighted is about 3 dB better.
5
Limit low due to noise level of production tester.
Version: 1.08, 2014-12-19 8