ISO
2
-CMOS
AC Electrical Characteristics (cont’d)
Characteristics
17
18
19
20
D
I
G
I
T
A
L
Propagation Delay
Clock to SD Output
SD Output Fall Time
SD Output Rise Time
Digital Loopback
Time DSTi to DSTo
SD
SD
SD
Sym
t
PCS
t
SF
t
SR
t
DL
Min
MT8960/61/62/63/64/65/66/67
Typ*
Max
400
200
400
122
Units
ns
ns
ns
ns
Test Conditions
C
L
= 100 pF
C
L
= 20 pF
(See Figures 9a, 9b, 9c)
Note 3:
Note 4:
The filter characteristics are totally dependent upon the accuracy of the clock frequency providing F1i is synchronized to
C2i. The A/D and D/A functions are unaffected by changes in clock frequency.
This gives a 75 ns period, 50 ns before and 25 ns after the 50% point of C2i rising edge, when change in F1i will give an
undetermined state to to the internally synchronized enable signal.
AC Electrical Characteristics - Transmit (A/D) Path
- Voltages are with respect to GNDD unless otherwise stated.
T
A
=0 to 70°C, V
DD
=5V±5%, V
EE
=-5V±5%, V
Ref
=2.5V±0.5%, GNDA=GNDD=0V, Clock Frequency = 2.048MHz,
Filter Gain Setting = 0dB. Outputs unloaded unless otherwise specified.
Characteristics
1
Analog Input at V
X
equivalent to
the overload decision level at
the codec
Absolute Gain (0dB setting)
Absolute Gain (+1dB to +7dB
settings)
Gain Variation
A
N
A
L
O
G
With Temp
With Supplies
Gain Tracking
(See Figure 12)
CCITT G712
(Method 1)
Sym
V
IN
Min
Typ*
4.829
5.000
Max
Units
V
PP
V
PP
Test Conditions
Level at codec:
µ-Law:
3.17 dBm0
A-Law: 3.14 dBm0
See Note 6
0 dBm0 @ 1004 Hz
from nominal,
@ 1004 Hz
T
A
=0°C to 70°C
2
3
4
G
AX
-0.25
-0.35
+0.25
+0.35
0.01
0.04
dB
dB
dB
dB/V
G
AXT
G
AXS
GT
X1
-0.25
-0.25
-0.50
5
+0.25
+0.25
+0.50
+0.25
+0.50
+1.50
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Sinusoidal Level:
+3 to -20 dBm0
Noise Signal Level:
-10 to -55 dBm0
-55 to -60 dBm0
Sinusoidal Level:
+3 to -40 dBm0
-40 to -50 dBm0
-50 to -55 dBm0
Noise Signal Level:
-3 dBm0
-6 to -27 dBm0
-34 dBm0
-40 dBm0
-55 dBm0
CCITT G712
(Method 2)
AT&T
6
Quantization
Distortion
(See Figure 13)
GT
X2
-0.25
-0.50
-1.50
D
QX1
28.00
35.60
33.90
29.30
14.20
CCITT G712
(Method 1)
* Typical figures are at 25°C with nominal ±5V supplies. For design aid only: not guaranteed and not subject to production testing.
6-31
MITEL [ MITEL NETWORKS CORPORATION ]
