MT8888C Zarlink Semiconductor, MT8888C Datasheet - Page 20

• Manufacturer Part Number: MT8888C
• Description: Integrated DTMF Transceiver with Intel Micro Interface
• Manufacturer: Zarlink Semiconductor

AC Electrical Characteristics
†
† Timing is over recommended temperature & power supply voltages.
‡ Typical figures are at 25
AC Electrical Characteristics
- Voltages are with respect to ground (V
10
12
13
14
15
16
17
18
19
10
11
- Voltages are with respect to ground (V
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
Data setup time (write)
RD/WR clock frequency
RD/WR cycle period
RD/WR rise and fall time
Address setup time
Address hold time
Data hold time (read)
RD to valid data delay (read)
RD, WR pulse width low
RD, WR pulse width high
O
N
E
N
O
N
E
O
U
X
A
T
T
T
T
L
I
Tone present detect time
Tone absent detect time
Delay St to b3
Delay St to RX
Tone burst duration
Tone pause duration
Tone burst duration (extended)
Tone pause duration (extended)
High group output level
Low group output level
Pre-emphasis
Output distortion (Single Tone)
Frequency deviation
Output load resistance
Crystal/clock frequency
Clock input rise and fall time
Clock input duty cycle
Capacitive load (OSC2)
Characteristics
Characteristics
°
C and for design aid only: not guaranteed and not subject to production testing.
0
-RX
3
†
SS
- MPU Interface
), unless otherwise stated.
SS
), unless otherwise stated.
V
Zarlink Semiconductor Inc.
V
t
t
t
DC
t
Sym
PStRX
THD
PStb3
t
BSTE
dB
CLRF
C
t
HOUT
R
t
t
LOUT
BST
t
Sym
t
t
t
t
t
PSE
f
t
t
DP
DA
PS
f
f
PWH
DSW
CYC
CYC
t
t
DHR
DDR
PWL
R,
D
C
LO
LT
AS
AH
MT8888C
CL
P
t
F
3.5759 3.5795 3.5831
20
Min
-6.1
-8.1
100
100
0.5
50
50
10
40
Min
150
3
0
23
26
22
45
Typ
Typ
±0.7
250
100
-35
4.0
11
13
50
4
8
2
‡
‡
Max
100
Max
±1.5
-2.1
-4.1
20
104
104
110
8.5
14
52
52
50
60
30
3
Units
MHz
Units
dBm
dBm
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
ms
ms
ms
ms
ms
dB
dB
kΩ
µs
µs
pF
ns
%
%
Note 11
Note 11
See Figure 7
See Figure 7
DTMF mode
DTMF mode
Call Progress mode
Call Progress mode
R
R
R
R
f
Ext. clock
Ext. clock
25 kHz Bandwidth
Figure 18
Figure 18
Figure 18
Figures 19 & 20
Figures 19 & 20
Figures 19 & 20
Figures 19 & 20
Figures 18, 19 & 20
Figures 18, 19 & 20
Figures 19 & 20
C
L
L
L
L
=3.579545 MHz
=10kΩ
=10kΩ
=10kΩ
=10kΩ
Conditions
Conditions
Data Sheet