Rainbow Electronics ISD5216 - Manual (Page 49)

I5216 SERIES
Advanced Information
PRELIMINARY
Publication Release Date: November 30, 2001
- 49 Revision A1
SP +, SP- (Speaker +/-)
This is the speaker differential output circuit. It is designed to drive an 8Ω speaker connected across
the speaker pins, up to a maximum of 23.5 mW RMS power. This stage has two selectable gains, 1.32
and 1.6, which can be chosen through the configuration registers. These pins are biased to ap-
proximately 1.2 VDC and, if used single-ended, must be capacitively coupled to their load. Do NOT
ground the unused pin.
AUX OUT (Auxiliary Output)
The AUX OUT is an additional audio output pin to be used, for example, to drive the speaker circuit in
a “car kit.” It drives a minimum load of 5 kΩ and up to a maximum of 1 V p-p. The AC signal is
superimposed on approximately 1.2 VDC bias and must be capacitively coupled to the load.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
CIG2 CIG1 CIG0 AXG1 AXG0 AXPD INS0 OSPD AMT0 CDI1 CDI0 OPS1 OPS0 OPA1 OPA0 VLPD CFG0
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
VLS1 VLS0 VOL2 VOL1 VOL0 S1S1 S1S0 S1M1 S1M0 S2M1 S2M0 FLS0 FLD1 FLD0 FLPD AGPD CFG1
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
X X X CKD2 COG2 COG1 COG0 CKDV MUTE HPF0 HSR0 I2S0 LAW1 LAW0 DAPD ADPD CFG2
OPS1 OPS0 SOURCE
0 0 VOL
0 1 DAC OUT
1 0 FILTO
1 1 SUM2
OPA1 OPA0 SPKR DRIVE AUX OUT
0 0 Power Down Power Down
0 1 3.6 V
P-P
@ 150 Ω Power Down
1 0 23.5 mWatt @ 8 Ω Power Down
1 1 Power Down 1 V
P-P
Max @ 5 K Ω