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| ISD5100 Datasheet, PDF (53/88 Pages) Winbond – SINGLE-CHIP 1 TO 16 MINUTES DURATION VOICE RECORD/PLAYBACK DEVICES WITH DIGITAL STORAGE CAPABILITY | |||
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ISD5100 â SERIES
AUX IN (Auxiliary Input)
The AUX IN is an additional audio input to the ISD5100-Series, such as from the microphone circuit in
a mobile phone âcar kit.â This input has a nominal 694 mV p-p level at its minimum gain setting (0 dB).
See the AUX IN Amplifier Gain Settings table on page 56. Additional gain is available in 3 dB
steps (controlled by the I2C interface) up to 9 dB.
AUX IN Input Modes
Internal to the device
Rb
CCOUP = 0.1 ìF
AUX IN
Ra
Input
ANA IN
Input Amplifier
NOTE: fCUTTOFF
1
2xRaCCCUP
Gain
Setting
00
01
Resistor Ratio
(Rb/Ra)
40.1 / 40.1
47.0 / 33.2
10
53.5 / 26.7
11
59.2 / 21
Note: Ra & Rb are in kâ¦
Gain
1.0
1.414
2.0
2.82
Gain(2)
(dB)
0
3
6
9
Setting(1)
0 dB
3 dB
6 dB
9 dB
0TLP Input
VP-P(3)
0.694
0.491
0.347
0.245
AUX IN Amplifier Gain Settings
CFG0
Gain(2)
AXG1
AXG0
0
0
1.00
0
1
1.41
1
0
2.00
1
1
2.82
Array
In/Out VP-P
0.694
0.694
0.694
0.694
Speaker
Out VP-P(4)
0.694
0.694
0.694
0.694
1. Gain from AUX IN to ANA OUT
2. Gain from AUX IN to ARRAY IN
3. 0TLP Input is the reference Transmission Level Point that is used for testing. This level is typically 3 dB
below clipping
4. Differential
- 53 -
Publication Release Date: October, 2003
Revision 0.2
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