u4091bm-r ATMEL Corporation, u4091bm-r Datasheet - Page 32

• Manufacturer Part Number: u4091bm-r
• Description: Programmable Telephone Audio Processor
• Manufacturer: ATMEL Corporation

18. Electrical Characteristics (Continued)
f = 1 kHz, 0 dBm = 775 mV
RLS = 50 , Z
32
Parameters
Mute suppression
Gain change with current
Gain change with frequency
Attack time of anti-clipping
Release time of anti-clipping
Adjustment step of charge current
Adjustment step of
discharge current
Charge current
Pin SAO2
Discharge current pin SAO2
Microphone Amplifier,
V
Gain MIC amp.:
MIC1/2
MIC3 to AMREC
Input suppression:
MIC3 to MIC1/2
MIC1/2 to MIC3
Settling time offset cancellers
Settling time offset cancellers in
speed-up mode
AGC for Answering Machine, AMPB to AMREC,
ENAM = ENAGC = I4O5 = I5O4 = 1
Nominal gain
Maximum output level
Attack time
Release time
Switching Matrix,
VL = 0, VB = 5V, ENAM = I4O4 = 1, V
Input impedance AMPB
Gain AMPB to AMREC
Maximum input level AMPB
Maximum output level AMREC
Note:
B
= 5V, V
1. This is a period of time the bus requires from the end of a data transmission and before a new transmission can be started
AMREC
MIC
U4091BM-R
M
= 2 mV, V
= 68 nF, resonator: f = 3.58 MHz, all bits in reset condition, unless otherwise specified.
MIC3
rms
= 2 mV, ENMIC = ENAM = I1O4 = 1, MICHF = 0
, IVMIC = 0.3 mA, IMP = 3 mA, R
AMPB
Test Conditions
I
V
I4O2 = 0
I
I
f = 1 kHz to 3.4 kHz
20 dB overdrive
ENSAO = 0, SE = 1
DLSCUR[0:1] = 1
ENSAO = 0, SE = 0
DLSCUR[0:1] = 1
ENSAO = 0, SE = 1
LSCUR[0:1] = 3
ENSAO = 0, SE = 0
LSCUR[0:1] = 3
MICG[0:1] = 0
MICG[0:1] = 1
MICG[0:1] = 2
MICG[0:1] = 3
MICHF = 1, MICG[0:1] = 3
MICG[0:1] = 0, MICHF = 0
MICHF = 1
5 , FOFFC = 0
5 , FOFFC = 1
V
V
20 dB overdrive
I4O5 = I5O4 = 1, I4O4 = 0
I4O4 = 1
L
L
L
AMPB
AMPB
AMPB
= 15 mA, V
= 15 mA to 100 mA
= 15 mA
= 0.6 V
= 4 mV
= 5 mV
= 50 mV, d< 5%
rms
L
= 0 dBm,
DC
= 1.3 M , T
amb
= 25°C, Z
Symbol
VSAO
I
I
G
G
CHA
DIS
t
t
r
f
SA
SA
ear
= 68 nF + 100 ,
–1.45
–480
0.95
17.4
23.2
29.1
35.0
35.0
23.5
–0.7
Min.
320
240
–1
60
60
50
–400
–1.2
18.1
23.7
29.8
35.7
35.7
25.5
–0.3
Typ.
170
400
300
1.2
1.8
45
60
2
9
1
600 mV
–0.95
–320
VB –
Max.
1.45
18.8
24.6
30.5
36.4
36.5
27.5
+0.1
–56
480
360
600
2.4
12
70
4872A–CORD–08/05
1
0
dBm
mVp
Unit
mA
mA
mV
V
dB
dB
ms
ms
µA
µA
dB
dB
dB
dB
dB
dB
dB
ms
ms
dB
ms
ms
dB
k
PP