M-8880 CLARE [Clare, Inc.], M-8880 Datasheet - Page 9

• Manufacturer Part Number: M-8880
• Description: M-8880 DTMF Transceiver
• Manufacturer: CLARE [Clare, Inc.]

40-406-00012, Rev. G
Microprocessor interface (continued)
Data hold time (read)
f2 to valid data delay (read) (200 pF load)
Data setup time (write)
Data hold time (write)
Input capacitance, D0—D3
Output capacitance, IRQ/CP
DTMF clock
Crystal clock frequency
Clock input rise time (external clock)
Clock input fall time (external clock)
Clock input duty cycle (external clock)
Capacitive load, OSC2
Input leakage current (V
Input resistance
Input offset voltage
Power supply rejection (1 KHz)
Common mode rejection (-3.0 V £ V
DC open-loop voltage gain
Unity gain bandwidth
Output voltage swing (R
Maximum capacitive load, GS
Maximum resistive load, GS
Common mode range (no load)
All voltages referenced to unless otherwise noted. V
*Typical values are for use as design aids only, and are not guaranteed or subject to production testing.
Notes:
1. dBm = decibels above or below a reference power of 1 mW into a 600 W load.
2. Digit sequence consists of all 16 DTMF tones.
3. Tone duration = 40 ms. Tone pause = 40 ms.
4. Nominal DTMF frequencies are used.
5. Both tones in the composite signal have an equal amplitude.
6. The tone pair is deviated by ± 1.5% ± 2 Hz.
7. Bandwidth limited (3 kHz) Gaussian noise.
8. The precise dial tone frequencies are 350 and 440 Hz (± 2%).
9. For an error rate of less than 1 in 10,000.
10. Referenced to the lowest amplitude tone in the DTMF signal.
11. Referenced to the minimum valid accept level.
All voltages referenced to unless otherwise noted. V
*Typical values are for use as design aids only, and are not guaranteed or subject to production testing.
Parameter
SS
L
Parameter
³ 100 K to V
£ V
IN
£ V
Table 13 Electrical Characteristics - Gain Setting Amplifier
IN
DD
£ 3.0 V
)
SS
)
Table 12 AC Characteristics (continued)
)
DD
DD
= 5.0 V ± 5%; V
= 5.0 V; V
Symbol
C/
DC
t
t
t
t
t
t
LHCL
HLCL
C
DSW
DHW
DHR
DDR
C
f
OUT
C
LO
Symbol
Page 9
IN
M-8880
CMRR
CL
PSRR
A
V
V
R
BW
V
SS
I
C
R
VOL
CM
IN
OS
IN
O
L
L
= 0 V; T
SS
= 0 V; f
A
3.5759
= 25°C
Min
22
—
45
10
—
—
—
—
40
—
Min
C
—
—
—
—
—
—
—
—
—
—
—
= 3.579545 MHz; T
Typ*
100
100
1.5
4.5
3.0
3.5795
10
25
60
60
65
50
Typ*
50
—
—
—
—
—
—
—
5
5
A
= -40°C to +85°C
3.5831
Max
—
—
—
—
—
—
—
—
—
—
—
Max
150
110
110
60
30
—
—
—
—
—
www.clare.com
Units
Units
MHz
MHz
V
V
M
mV
K
nA
dB
dB
dB
pF
pF
pF
pF
ns
ns
ns
ns
ns
ns
%
PP
PP