MT88E46 Datasheet, PDF (16/23 Pages) Zarlink Semiconductor Inc – Bellcore Compliant Calling Number Identification Circuit

MT88E46 Advance Information
AC Electrical Characteristics^† - FSK Demodulation
Characteristics
Sym Min Typ^‡ Max Units
Notes*
1 Accept Signal Level
2 Bell 202 Format Reject Signal Level
3 Transmission Rate
Mark and Space Frequencies
Bell 202 1 (Mark)
4 ^{Bell 202 0 (Space)}
CCITT V.23 1 (Mark)
CCITT V.23 0 (Space)
-40
-37.78 -
10.0
-6.45 dBV
-4.23 dBm 1, 2
476 mVrms
-50.46 dBV
-
- -48.24 dBm 1, 2, 3
3 mVrms
1188 1200 1212 baud
1188 1200 1212 Hz
2178 2200 2222 Hz
1280.5 1300 1319.5 Hz
2068.5 2100 2131.5 Hz
5 Twist: 20 log (V_MARK/V_SPACE)
6 Signal to Noise Ratio
7 Input FSK to CD low delay
8 Input FSK to CD high delay
9 CD Time Hysteresis
-6
SNR_FSK 20
t_CP
-
t_CA
10
10
-
+10 dB 2
-
-
dB 2, 3, 4
-
25 ms See Figures 16, 17
-
-
ms See Figures 16, 17
-
-
ms
†AC Electrical Characteristics are over recommended operating conditions, unless otherwise stated.
‡Typical figures are at 25˚C and are for design aid only: not guaranteed and not subject to production testing.
*Notes:
1.Tip/Ring input signal level.
dBm = decibels above or below a reference power of 1mW into 600 ohms. 0dBm = 0.7746Vrms.
dBV = decibels above or below a reference voltage of 1Vrms. 0dBV = 1Vrms.
2.GS1 op-amp configured to 0dB gain for Vdd=5V±10%, -4dB (preliminary) for Vdd=3V±10%.
3.Both mark and space have the same amplitude.
4.Band limited random noise (300-3400Hz). Present when FSK signal is present.
Electrical Characteristics^† - Gain Setting Amplifiers
Characteristics
Sym Min Max Units
Test Conditions
1 Input Leakage Current
2 Input Resistance
3 Input Offset Voltage
4 Power Supply Rejection Ratio
I_IN
-
1
µA Vss ≤ V_IN ≤ Vdd
R_IN
10
-
MΩ
V_OS
-
25
mV
PSRR 30
-
dB 1kHz ripple on Vdd
5 Common Mode Rejection Ratio
CMRR 40
-
dB V_CMmin ≤ V_IN ≤ V_CMmax
6 DC Open Loop Voltage Gain
A_VOL
40
-
dB
7 Unity Gain Bandwidth
f_C
0.3
-
MHz
8 Output Voltage Swing
V_O
0.5 Vdd-0.7 V Load ≥ 100kΩ
9 Capacitive Load (GS1,GS2)
C_L
-
50
pF
10 Resistive Load (GS1,GS2)
R_L
100
-
kΩ
11 Common Mode Range Voltage
V_CM
1.0 Vdd-1.0 V
†Electrical characteristics are over recommended operating conditions, unless otherwise stated.
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