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3V DTMF Receiver - M-88L70-01P - Clare Inc.

Número de pieza M-88L70-01P
Descripción 3V DTMF Receiver
Fabricantes Clare Inc. 
Logotipo Clare  Inc. Logotipo
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M-88L70-01P datasheet
M-88L70-01P pdf, arduino
M-88L70
Table 5 Operating Characteristics - Gain Setting Amplifier
PARAMETER
SYMBOL
MIN
TYP
Input leakage current
Input resistance
Input offset voltage
Power supply rejection
IN
RIN
VOS
PSRR
- 100
- 10
- 15
50 60
Common mode rejection
CMRR 40 60
DC open loop voltage gain
Open loop unity gain bandwidth
Output voltage swing
Tolerable capacitive load (GS)
Tolerable resistive load (GS)
Common mode range
AVOL 32 65
fC 0.3 1.0
VO - 2.2
CL - -
RL 50 -
VCM - 1.5
All voltages referenced to VSS unless otherwise noted. VDD = 3.0 V +20%/-10%, VSS = 0 V, TA = -40˚C to + +85˚C
MAX UNITS
- nA
- M
25 mV
- dB
- dB
- dB
- MHz
- VP-P
100 pF
- k
- V P-P
TEST CONDITIONS
VSS < VIN < VDD
1 kHz
-3.0V < VIN < 3.0V
RL 3 100 kto VSS
No load
Table 6 AC Characteristics
PARAMETER
SYMBOL
MIN
TYP MAX
UNITS
Valid input signal levels
- -36 - -6.4 dBm
(each tone of composite signal)
- 12.3 - 370 mVRMS
Positive twist accept
-
-
-6
dB
Negative twist accept
-
-
-6
dB
Frequency deviation accept limit
- - - 1.5% ±2 Hz Nom.
Frequency deviation reject limit
- ±3.5% -
- Nom.
Third tone tolerance
- - -16 - dB
Noise tolerance
- - -12 - dB
Dial tone tolerance
- - +22 - dB
Tone present detection time
Tone absent detection time
Minimum tone duration accept
Maximum tone duration reject
Minimum interdigit pause accept
Maximum interdigit pause reject
Propagation delay (St to Q)
Propagation delay (St to StD)
Output data setup (Q to StD)
Propagation delay (OE to Q), enable
Propagation delay (OE to Q), disable
Crystal clock frequency
Clock output (OSC2), capacitive load
tDP 5
8 14
tDA 0.5
3 8.5
tREC - 40
tREC 20
--
tID -
- 40
tDO 20
--
tPQ - 13 -
tPStD
-
8-
tQStD
-
3.4 -
tPTE - 200 -
tPTD - 500 -
fCLK
3.5759
3.5795 3.5831
CLO -
- 30
All voltages referenced to VSS unless otherwise noted. For typical values VDD = 3.0 V, VSS = 0 V, TA = -40˚C to +85˚C, fCLK = 3.579545 MHz.
1. dBm = decibels above or below a reference power of 1 mW into a 600 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, measured at GS.
5. Both tones in the composite signal have an equal amplitude.
6. Bandwidth limited (0 to 3 kHz) Gaussian noise.
7. The precise dial tone frequencies are (350 and 440 Hz) ± 2%.
8. For an error rate of better than 1 in 10,000.
9. Referenced to lowest level frequency component in DTMF signal.
10. Minimum signal acceptance level is measured with specified maximum frequency deviation.
11. Input pins defined as IN+, IN-, and OE.
12. External voltage source used to bias VREF.
13. This parameter also applies to a third tone injected onto the power supply.
14. Referenced to Figure 4. Input DTMF tone level at -28 dBm.
ms
ms
ms
ms
ms
ms
µs
µs
µs
ns
ns
MHz
pF
Notes:
Rev. 1 www.clare.com
NOTES
1,2,3,4,5,8
2,3,5,8,10
2,3,5
2,3,4,5,8,9,13,14
2,3,4,5,6,8,9
2,3,4,5,7,8,9
See Figure 8
User adjustable (see Figures 3
and Figure 5)
OE = VDD
RL = 10k, CL = 50 pF
5





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