MT8889C Datasheet, PDF (14/18 Pages) Mitel Networks Corporation – Integrated DTMFTransceiver with Adaptive Micro Interface

MT8889C/MT8889C-1
Electrical Characteristics
Gain Setting Amplifier - Voltages are with respect to ground (V_SS) unless otherwise stated, V_SS= 0V, V_DD=5V, T_O=25°C.
Characteristics
Sym Min Typ^‡ Max Units
Test Conditions
1 Input leakage current
2 Input resistance
3 Input offset voltage
4 Power supply rejection
I_IN
R_IN
V_OS
PSRR
±100
10
25
60
nA
V_SS ≤ V_IN ≤ V_DD
MΩ
mV
dB
1 kHz
5 Common mode rejection
CMRR
60
dB
0.75 ≤ V_IN ≤ 4.25V
6 DC open loop voltage gain
A_VOL
65
dB
7 Unity gain bandwidth
BW
1.5
MHz
8 Output voltage swing
V_O
4.5
V_pp
9 Allowable capacitive load (GS)
C_L
100
pF
10 Allowable resistive load (GS)
R_L
50
kΩ
11 Common mode range
V_CM
3.0
V_pp
‡ Typical figures are at 25°C and for design aid only: not guaranteed and not subject to production testing.
R_L ≥ 100 kΩ to V_SS
No Load
MT8889C-1 AC Electrical Characteristics^† - Voltages are with respect to ground (V_SS) unless otherwise stated.
Characteristics
Sym
Min
Typ Max Units
Notes*
1
Valid input signal levels
(each tone of composite
R signal)
2 ^X Input Signal Level Reject
-31
21.8
-37
+1
dBm 1,2,3,5,6
869 mV_RMS 1,2,3,5,6
dBm 1,2,3,5,6
10.9
mV_RMS 1,2,3,5,6
† Characteristics are over recommended temperature and at V_DD=5V, using the test circuit shown in Figure 13.
MT8889C AC Electrical Characteristics^† - Voltages are with respect to ground (V_SS) unless otherwise stated.
Characteristics
Sym
Min
Typ^‡ Max Units
Notes*
1
R
X
Valid input signal levels
(each tone of composite
signal)
-29
27.5
+1
dBm 1,2,3,5,6
869 mV_RMS 1,2,3,5,6
† Characteristics are over recommended operating conditions (unless otherwise stated) using the test circuit shown in Figure 13.
AC Electrical Characteristics^† - Voltages are with respect to ground (V_SS) unless otherwise stated. f_C=3.579545 MHz
Characteristics
Sym
Min
Typ^‡ Max Units
Notes*
1
Positive twist accept
8
dB
2,3,6,9
2
Negative twist accept
8
dB
2,3,6,9
3
Freq. deviation accept
4
R
X
Freq. deviation reject
5
Third tone tolerance
±1.5%± 2Hz
±3.5%
-16
2,3,5
2,3,5
dB
2,3,4,5,9,10
6
Noise tolerance
-12
dB
2,3,4,5,7,9,10
7
Dial tone tolerance
22
dB
2,3,4,5,8,9
† Characteristics are over recommended operating conditions unless otherwise stated.
‡ Typical figures are at 25°C, V_DD = 5V, and for design aid only: not guaranteed and not subject to production testing.
* *See “Notes” following AC Electrical Characteristics Tables.
4-120