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MT8870DS1-1

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19
MT8870D/MT8870D-1 Data Sheet
10
Zarlink Semiconductor Inc.
† Exceeding these values may cause permanent damage. Functional operation under these conditions is not implied.
Derate above 75°C at 16 mW / °C. All leads soldered to board.
‡ Typical figures are at 25°C and are for design aid only: not guaranteed and not subject to production testing.
Absolute Maximum Ratings
†
Parameter Symbol Min. Max. Units
1 DC Power Supply Voltage V
DD
7V
2 Voltage on any pin V
I
V
SS
-0.3 V
DD
+0.3 V
3 Current at any pin (other than supply) I
I
10 mA
4 Storage temperature T
STG
-65 +150 °C
5 Package power dissipation P
D
500 mW
Recommended Operating Conditions -
Voltages are with respect to ground (V
SS
) unless otherwise stated.
Parameter Sym. Min. Typ.
‡
Max. Units Test Conditions
1 DC Power Supply Voltage V
DD
4.75 5.0 5.25 V
2 Operating Temperature T
O
-40 +85 °C
3 Crystal/Clock Frequency fc
3.579545
MHz
4 Crystal/Clock Freq.Tolerance ∆fc ±0.1 %
DC Electrical Characteristics -
V
DD
=5.0V± 5%, V
SS
=0V, -40°C ≤ T
O
≤ +85°C, unless otherwise stated.
Characteristics Sym. Min. Typ.
‡
Max. Units Test Conditions
1
S
U
P
P
L
Y
Standby supply current I
DDQ
10 25 µA PWDN=V
DD
2 Operating supply current I
DD
3.0 9.0 mA
3 Power consumption P
O
15 mW fc=3.579545 MHz
4
I
N
P
U
T
S
High level input V
IH
3.5 V V
DD
=5.0 V
5 Low level input voltage V
IL
1.5 V V
DD
=5.0 V
6 Input leakage current I
IH
/I
IL
0.1 µAV
IN
=V
SS
or V
DD
7 Pull up (source) current I
SO
7.5 20 µA TOE (pin 10)=0,
V
DD
=5.0 V
8 Pull down (sink) current I
SI
15 45 µAINH=5.0V,
PWDN=5.0 V,
V
DD
=5.0 V
9 Input impedance (IN+, IN-) R
IN
10 MΩ @ 1 kHz
10 Steering threshold voltage V
TSt
2.2 2.4 2.5 V V
DD
= 5.0 V
MT8870D/MT8870D-1 Data Sheet
11
Zarlink Semiconductor Inc.
‡ Typical figures are at 25
°C and are for design aid only: not guaranteed and not subject to production testing.
11
O
U
T
P
U
T
S
Low level output voltage V
OL
V
SS
+0.0
3
V No load
12 High level output voltage V
OH
V
DD
-
0.03
V No load
13 Output low (sink) current I
OL
1.0 2.5 mA V
OUT
=0.4 V
14 Output high (source) current I
OH
0.4 0.8 mA V
OUT
=4.6 V
15 V
Ref
output voltage V
Ref
2.3 2.5 2.7 V No load, V
DD
= 5.0V
16 V
Ref
output resistance R
OR
1kΩ
Operating Characteristics
- V
DD
=5.0V±5%, V
SS
=0V, -40°C ≤ T
O
≤ +85°C,unless otherwise stated.
Gain Setting Amplifier
Characteristics Sym. Min. Typ.
‡
Max. Units Test Conditions
1 Input leakage current I
IN
100 nA V
SS
≤ V
IN
≤ V
DD
2 Input resistance R
IN
10 MΩ
3 Input offset voltage V
OS
25 mV
4 Power supply rejection PSRR 50 dB 1 kHz
5 Common mode rejection CMRR 40 dB 0.75 V ≤ V
IN
≤ 4.25 V biased
at V
Ref
=2.5 V
6 DC open loop voltage gain A
VOL
32 dB
7 Unity gain bandwidth f
C
0.30 MHz
8 Output voltage swing V
O
4.0 V
pp
Load ≥ 100 kΩ to V
SS
@ GS
9 Maximum capacitive load
(GS)
C
L
100 pF
10 Resistive load (GS) R
L
50 kΩ
11 Common mode range V
CM
2.5 V
pp
No Load
DC Electrical Characteristics -
V
DD
=5.0V± 5%, V
SS
=0V, -40°C ≤ T
O
≤ +85°C, unless otherwise stated.
Characteristics Sym. Min. Typ.
‡
Max. Units Test Conditions
MT8870D/MT8870D-1 Data Sheet
12
Zarlink Semiconductor Inc.
‡ Typical figures are at 25°C and are for design aid only: not guaranteed and not subject to production testing.
*NOTES
1. dBm= decibels above or below a reference power of 1 mW into a 600 ohm load.
2. Digit sequence consists of all DTMF tones.
3. Tone duration= 40 ms, tone pause= 40 ms.
4. Signal condition consists of nominal DTMF frequencies.
5. Both tones in composite signal have an equal amplitude.
6. Tone pair is deviated by
±1.5%± 2 Hz.
7. Bandwidth limited (3 kHz) Gaussian noise.
8. The precise dial tone frequencies are (350 Hz and 440 Hz)
± 2%.
9. For an error rate of better than 1 in 10,000.
10. Referenced to lowest level frequency component in DTMF signal.
11. Referenced to the minimum valid accept level.
12. Guaranteed by design and characterization.
MT8870D AC Electrical Characteristics -V
DD
=5.0V ±5%, V
SS
=0V, -40°C ≤ T
O
≤ +85°C, using Test Circuit shown in Figure 10.
Characteristics Sym. Min. Typ.
‡
Max. Units Notes*
1
Valid input signal levels (each
tone of composite signal)
-29 +1 dBm 1,2,3,5,6,9
27.5 869 mV
RMS
1,2,3,5,6,9
2 Negative twist accept 8 dB 2,3,6,9,12
3 Positive twist accept 8 dB 2,3,6,9,12
4 Frequency deviation accept ±1.5% ± 2 Hz 2,3,5,9
5 Frequency deviation reject ±3.5% 2,3,5,9
6 Third tone tolerance -16 dB 2,3,4,5,9,10
7 Noise tolerance -12 dB 2,3,4,5,7,9,10
8 Dial tone tolerance +22 dB 2,3,4,5,8,9,11
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19

MT8870DS1-1

Mfr. #:
Buy MT8870DS1-1
Manufacturer:
Microchip / Microsemi
Description:
Telecom Interface ICs Pb Free DTMF RECEIVER PREMIUM SOIC
Lifecycle:
New from this manufacturer.
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