User guide

S1A0071 Audio Processor for Class-D Power AMP
Digital & Analog Co., Ltd. (Rev. 1.0) -7-
5. ELECTRIC CHARATERISTICS
ELECTRICAL CHARACTERISTICS
Ta = 25°C, Vi = 0.3Vrms, f = 1kHz, VCC = 5V, VSS = -5V, R
L
= 4Ω,
Vc = 1.0V, Power Supply Voltage (VCCP, VSSP) = ± 30V
Characteristic Symbol Condition Value Unit
Min. Typ. Max.
Supply current Icc Vi = 0 35 mA
Driver rising time Tr CL = 10pF 20 nsec
Driver falling time Tf CL = 10pf 20 nsec
PGATE on time delay Tdp CL = 10pf 20 nsec
NGATE on time delay Tdn CL = 10pf 20 nsec
Driver low level Vgl Isink = 100uA, DC - -4.5 -4.0 V
Driver high level Vgh Ipush = 100uA, DC -1.0 -0.5 - V
Input limiting voltage Vlim
V
LP
= 1.5V, V
LN
= -1.5V
2.8 3.0 3.2 Vp-p
Oscillation frequency Fosc - 360 450 540 kHz
Oscillation level Vosc Vc = 1.0V 2.0 2.2 2.4 Vp-p
OSCEN conversion voltage Vto - 1.0 1.5 2.2 V
MUΤΕ conversion voltage
Vtm - 1.2 1.6 2.0 V
PMON "L" level
Vpmon
Rmon = 470Ω
- - 0.4 V
Circuit bias voltage Vb - 2.8 3.0 3.2 V
Logic supply voltage Vd - -1.2 -0.8 -0.2 V
Audio amp gain Gp1 f = 1kHz.closed loop -0.5 -2.5 -4.5 dB
Gp2 f = 450kHz, open loop 9.0 12.0 15.0 dB
Total voltage gain Gv Vi = 0.1Vrms, f = 1kHz 24.0 26.0 28.0 dB
Channel balance CB Vi = 0.1Vrms, f = 1kHz -1.0 0 1.0 dB
Ripple rejection ratio RR Vr = 0.2Vp-p, f = 120Hz - - -70 dB
Output offset voltage Vofs Vi = 0 - - 0.1 V
Maximum output Pomax1
THD = 1%, R
L
= 4hm
75.2 W
Pomax2
THD = 1%, R
L
= 8ohm
43.5 W
Total harmonic distortion THD1 Po = 10W, RL = 4ohm - 0.030 %
THD2 Po = 50W, RL = 4ohm - 0.062 %
THD3 Po = 5.0W, RL = 8ohm - 0.025 %
THD4 Po = 25W ,RL = 8ohm - 0.026 %
Output noise voltage Vno Vi = 0 0Vrms - 160 uVrms
Channel cross talk CT Vi = 0.3Vrms - - -80 dB
Mute damp ratio Rmute Vi = 0.8Vrms - - -110 dB
Over current detect voltage Voc - 0.70 0.96 1.20
± V