MT88E43B
Data Sheet
Electrical Characteristics† - Gain Setting Amplifier
Characteristics
Input Leakage Current
Input Resistance
Sym.
Min.
Max.
Units
Test Conditions
VSS ≤ VIN ≤ VDD
1
2
3
4
5
6
7
8
9
IIN
Rin
1
µA
MΩ
mV
dB
dB
dB
MHz
Vpp
pF
10
Input Offset Voltage
VOS
PSRR
CMRR
AVOL
fC
25
Power Supply Rejection Ratio
Common Mode Rejection
DC Open Loop Voltage Gain
Unity Gain Bandwidth
Output Voltage Swing
Maximum Capacitive Load (GS)
40
40
30
0.3
0.5
1kHz ripple on VDD
VCMmin ≤ VIN ≤ VCMmax
V
-0.5
VO
CL
Load ≥ 50kΩ
DD
100
10 Maximum Resistive Load (GS)
11 Common Mode Range Voltage
RL
VCM
50
1.0
kΩ
V
V
-1.0
DD
† Electrical characteristics are over recommended operating conditions, unless otherwise stated.
AC Electrical Characteristics† - FSK Detection
Characteristics
Input Detection Level
Sym.
Min. Typ.‡ Max. Units
Notes*
1
-40
-37.78
10.0
-8
dBV1 1,3
-5.78 dBm2
398.1 mVrms
2
3
Transmission Rate
1188 1200 1212
baud
Input Frequency Detection
Bell 202 1 (Mark)
1188 1200 1212
2178 2200 2222
Hz
Hz
Bell 202 0 (Space)
CCITT V.23 1 (Mark)
CCITT V.23 0 (Space)
1280.5 1300 1319.5
2068.5 2100 2131.5
Hz
Hz
4
Signal to Noise Ratio
SNRFSK
20
dB
1,2
1. dBV = decibels above or below a reference voltage of 1 Vrms.
2. dBm = decibels above or below a reference power of 1mW into 600 ohms. 0 dBm = 0.7746 Vrms.
*Notes
1. Both mark and space have the same amplitude.
2. Band limited random noise (200-3400Hz). Present when FSK signal is present. Note that the BT band is 300-3400Hz, the Bellcore
band is 0-4kHz.
3. Production tested at VDD=3V ±10%, 5V ±10%.
† AC Electrical Characteristics are over recommended operating conditions, unless otherwise stated.
‡ Typical figures are nominal values and are for design aid only: not guaranteed and not subject to production testing.
AC Electrical Characteristics† - Dual Tone Alert Signal Timing
Characteristics
Sym
Min
Max
Units
Notes*
1
2
Alert Signal present detect time
Alert Signal absent detect time
tDP
tDA
0.5
0.1
10
8
ms
ms
1
1
*Notes
1. Refer to Figures 1716 and 19
19
Zarlink Semiconductor Inc.
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