ISD5116 WINBOND [Winbond], ISD5116 Datasheet - Page 26

• Manufacturer Part Number: ISD5116
• Description: Single-Chip Voice Record/Playback Device Up to 16-Minute Duration with Digital Storage Capability
• Manufacturer: WINBOND [Winbond]

AUX IN (Auxiliary Input)
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 694 mV p-p level at its minimum gain setting (0 dB). See the following table.
Additional gain is available in 3 dB steps (controlled by the I
ANA IN (Analog Input)
The ANA IN pin is the analog input from the telephone chip set. It can be switched (by the I
the speaker output, the array input or to various other paths. This pin is designed to accept a nominal
1.11 V p-p when at its minimum gain (6 dB) setting. There is additional gain available, if required, in 3 dB
steps, up to 15 dB. The gain settings are controlled from the I
October 2000
1. Gain from ANA IN to SP+/-
2. Gain from ANA IN to ARRAY IN
3. 0TLP Input is the reference Transmission Level Point that is used for testing.
4. Speaker Out gain set to 1.6 (High). (Differential)
Setting
This level is typically 3 dB below clipping
12 dB
15 dB
6 dB
9 dB
(1)
0TLP Input
V
1.110
0.785
0.555
0.393
P-P
(3)
ANA IN Amplifier Gain Settings
AIG1
0
0
1
1
ANA IN Input Modes
CFG0
AIG0
0
1
0
1
2
C interface) up to 9 dB.
Setting
2
Gain
C interface.
00
01
10
11
Gain
0.625
0.883
1.250
1.767
(2)
Resistor Ratio
77.9 / 88.1
92.3 / 73.8
63.9 / 102
106 / 60
(Rb/Ra)
In/Out V
0.694
0.694
0.694
0.694
Array
P-P
0.625
0.883
1.250
1.767
Gain
2
C interface) to
Out V
Speaker
2.22
2.22
2.22
2.22
Page 25
Gain
(dB)
-4.1
-1.1
1.9
4.9
P-P
(4)
2