I5216 Datasheet, PDF (50/83 Pages) Winbond – 8 TO 16 MINUTE VOICE RECORD/PLAYBACK SYSTEM WITH INTEGRATED CODEC

I5216 SERIES
Advanced Information
PRELIMINARY
AUX IN (Auxiliary Input)
The AUX IN is an additional audio input to the Winbond I5216, such as from the microphone circuit in a
mobile phone “car kit.” This input has a nominal 694 mV p-p level at its minimum gain setting (0 dB).
(See Aux In Amplifier Gain Settings Table below). Additional gain is available in 3 dB steps (controlled
by the I²C interface) up to 9 dB.
AUX IN INPUT MODES
AUX IN
Input
Internal to the device
Rb
AUX IN
Input Amplifier
Gain
Setting
00
01
10
11
Resistor Ratio
(Rb/Ra)
40.1 / 40.1
47.0 / 33.2
53.5 / 26.7
59.2 / 21
Gain
1.0
1.414
2.0
2.82
Gain ⁽¹⁾
(dB)
0
3
6
9
AXPD
0
1
Condition
Power Up
Power Down
0TLP Input
V_P-P(2)
0.694
0.491
0.347
0.245
AUX IN AMPLIFIER GAIN SETTINGS
CFG0
AXG1
AXG0
0
0
0
1
1
0
1
1
Gain ⁽¹⁾
1.00
1.41
2.00
2.82
Array
In/Out V_P-P
0.694
0.694
0.694
0.694
Speaker
Out V_P-P(3)
0.694
0.694
0.694
0.694
1. Gain from AUX IN to ARRAY IN
2. 0TLP Input is the reference Transmission Level Point that is used for testing. This level is typically 3
dB below clipping
3. Differential
Publication Release Date: November 30, 2001
- 50
Revision A1