isd5216 Winbond Electronics Corp America, isd5216 Datasheet - Page 41

• Manufacturer Part Number: isd5216
• Description: 8 To 16 Minutes Voice Record/playback Device With Integrated Codec
• Manufacturer: Winbond Electronics Corp America

During playback, the signal passes through the Automatic Attenuator before it is filtered. The
Automatic Attenuator will attenuate all signals at the noise level in order to reduce the noise during
quiet pauses.
During record, low level input signals are brought up by the Auto Gain function if the configuration bit
D7 of CFG0 (AMT0) is set. This improves the signal to noise ratio of recorded low level input signals.
If the configuration bit CFG0<7> (AMT0) is set to ZERO, all input levels are recorded with the same
gain setting. The attack and release time of the Auto Gain and Auto Mute functions is set by the
capacitor on the ACAP pin. The AGC cannot be used if the Auto Gain or Auto Mute function is
enabled.
7.9. AUTO MUTE AND AUTO GAIN FUNCTIONS
Gain
Gain
(dB)
(dB)
Tattack | 0,1504 x Vpeak
-12
0
0
Expand
Expand
0
0
Vpp
Vpp
Trelease | 6.58 x Vpeak
- 41 -
Gain
Gain
(dB)
(dB)
0
0
Publication Release Date: Jan. 31, 2006
12
12
Compres
Compres
0
0
@ Cattcap=4.7 P F
ISD5216
Revision B.4
Vpp
Vpp