isd5100 Winbond Electronics Corp America, isd5100 Datasheet - Page 35

• Manufacturer Part Number: isd5100
• Description: Single-chip 1 To 16 Minutes Duration Voice Record/playback Devices With Digital Storage Capability
• Manufacturer: Winbond Electronics Corp America

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 “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
9 dB.
AUX IN
Input
Setting
C
0 dB
3 dB
6 dB
9 dB
COUP =
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. This level is
4. Speaker Out gain set to 1.6 (High). (Differential)
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
4.
(1)
NOTE:
0.1
typically 3 dB below clipping
Differential
3 dB below clipping
µ
F
f
0TLP Input
CUTTOFF
V
0.694
0.491
0.347
0.245
P-P
Ra
(3)
2xR
Internal to the device
1
a
C
COUP
Rb
AXG1
0
0
1
1
AUX IN Amplifier Gain Settings
ANA IN
Input Amplifier
AUX IN Input Modes
CFG0
- 35 -
AXG0
0
1
0
1
Note: Ra & Rb are in k Ω
Setting
Gain
00
01
10
11
Gain
1.00
1.41
2.00
2.82
Publication Release Date: May 16, 2007
(2)
Resistor Ratio
40.1 / 40.1
47.0 / 33.2
53.5 / 26.7
59.2 / 21
ISD5100 SERIES
(Rb/Ra)
In/Out V
0.694
0.694
0.694
0.694
Array
P-P
2
C interface) up to
1.414
Gain
2.82
1.0
2.0
Out V
Speaker
0.694
0.694
0.694
0.694
Revision 1.4
P-P
Gain
(4)
(dB)
0
3
6
9
(2)