ISD5116X Winbond, ISD5116X Datasheet - Page 22

• Manufacturer Part Number: ISD5116X
• Description: Single-Chip Voice Record/Playback Device Up to 16-Minute Duration with Digital Storage Capability
• Manufacturer: Winbond

4 ANALOG MODE
4.1 AUX IN AND ANA IN DESCRIPTION
The AUX IN is an additional audio input to the ISD5116, such as from the microphone circuit in a mobile
phone “car kit.” This input has a nominal 700 mV p-p level at its minimum gain setting (0 dB). See the
AUX IN Amplifier Gain Settings table
by the I
The ANA IN pin is the analog input from the telephone chip set. It can be switched (by the serial bus) to
the speaker output, the array input or to various other paths. This pin is designed to accept a nominal
1.11 Vp-p when at its minimum gain (6 dB) setting. See the
page 25. There is additional gain available in 3 dB steps controlled from the I
to 15 dB.
October 2000
ANA IN
Input
2
C serial interface) up to 9 dB.
AUX IN
Input
C
C
COUP
COUP
=0.1 F
NOTE: f
=0.1 F
NOTE: f
CUTOFF
CUTOFF
on page 26. Additional gain is available in 3 dB steps (controlled
=
Ra
=
Internal to the device
Ra
2 RaC
Internal to the device
2 RaC
1
1
COUP
COUP
ANA IN Amplifier Gain Settings table
Rb
ANA IN
Input Amplifier
Rb
AUX IN
Input Amplifier
2
C interface, if required, up
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on