CMX625P4 CMLMICRO [CML Microcircuits], CMX625P4 Datasheet - Page 28

• Manufacturer Part Number: CMX625P4
• Description: ISDN TA POTS Interface
• Manufacturer: CMLMICRO [CML Microcircuits]

ISDN TA POTS Interface
1.7.1.3 Operating Characteristics
For the following conditions unless otherwise specified:
DC Parameters
I
Logic ‘1’ Input Level (CMOS inputs)
Logic ‘0’ Input Level (CMOS inputs)
Logic Input Leakage Current (Vin = 0 to V
Logic ‘1’ Input Level (TTL inputs)
Logic ‘0’ Input Level (TTL inputs), Vdd = 3.3V-5.5V
Output Logic ‘1’ Level DD, DU (I
Output Logic ‘0’ Level DD DU (I
Output Logic ‘0’ Level IRQN (I
IRQN O/P ‘Off State Current (V
FSK Encoder and Tx UART
TONEFSK Signal Level
Level at TONEFSK pin for:
Output Impedance
Tone frequency resolution
Tone output distortion
DD
2001 Consumer Microcircuits Limited
Level at TONEFSK pin
Twist (Mark level w.r.t. Space level)
Tx 1200bits/sec (V23 mode)
Tx 1200bits/sec (Bell 202 mode)
Baud Rate (set by UART and DCL)
Mark (Logical 1) Frequency
Space (Logical 0) Frequency
Baud Rate (set by UART and DCL)
Mark (Logical 1) Frequency
Space (Logical 0) Frequency
All Enabled, V
All Disabled, V
DTMF Rx only, V
Tx (tones, SPM) only, V
Tx Output Buffer only Enabled, V
PCM Codec only, V
All Enabled, V
All Disabled, V
DTMF Rx only, V
Tx (tones, SPM) only, V
Tx Output Buffer only Enabled, V
PCM Codec only, V
V
0dBm = 775mVrms = 0dBm0.
DD
Single tone
Dual tone (per tone)
DTMF High Frequency Group
DTMF Low Frequency Group
= 2.7V at Tamb = 25°C and V
DD
DD
DD
DD
= 5.0V
= 3.3V
= 5.0V
DD
= 3.3V
DD
= 5.0V
DD
= 3.3V
DD
= 5.0V
= 3.3V
DD
DD
OL
OUT
OL
OH
= 5.0V
= 3.3V
= 3mA)
= 6mA)
= 4mA)
= V
DD
DD
DD
)
DD
= 5.0V
= 3.3V
DD
)
= 3.0V to 5.5V at Tamb = -40 to +85°C,
28
Notes
Notes
Notes
3, 13
14
14
14
1
1
1
1
1
1
1
1
1
1
1
1
3
3
3
3
4
4
4
4
4
5
1194
1194
1297
2097
1197
2197
Min.
70%
Min.
Min.
-1.0
-1.0
-2.0
-1.0
-4.0
-4.0
-6.0
-2.5
2.0
0.8
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1200
1300
2100
1200
1200
2200
Typ.
Typ.
Typ.
10.0
-3.0
-3.0
-5.0
140
6.9
2.4
3.5
1.8
3.1
5.0
1.6
2.3
1.3
2.3
0.8
80
0
0
0
-
-
-
-
-
-
-
-
-
-
Max.
1206
1303
2103
1206
1203
2203
Max.
Max.
+2.0
30%
+1.0
-2.0
-2.0
-4.0
0.8
0.4
0.4
1.0
1.0
1.0
2.5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
CMX625
D/625/2
Baud
Baud
dBm
dBm
dBm
dBm
dBm
Unit
Unit
Unit
V
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
k
dB
Hz
Hz
Hz
Hz
Hz
µA
µA
µA
µA
%
V
V
V
V
V
V
DD