m-982-02 Clare, Inc., m-982-02 Datasheet - Page 3

• Manufacturer Part Number: m-982-02
• Description: Precise Call Progress Tone Detector
• Manufacturer: Clare, Inc.

Pin Functions
Rev. 4
Specifications (continued)
Unless otherwise noted, V
Power levels are in dBm referenced to 600 ohm. DC voltages are referenced to V
Notes:
1. Per tone.
DET 1
DET 2
DET 3
DET 4
DET 5
EN
OE
SIGIN
STROBE
V
V
V
X358
XIN
XOUT
XRANGE
MODE
PD
Tri-state
Clock
Operation
Note: This output indicates 400 Hz detect when MODE is connected to V
Hz detect when open, or connected to V
DD
REF
SS
Pin
Active high tri-state output, detect for 350 Hz.
Active high tir-state ooutput, detect for 400/620 Hz.
(See Note.)
Active high tri-state output, detect for 440 Hz.
Active high tri-state output, detect for 480 Hz.
Active high tri-state output, detect for 425 Hz.
Active high enabled, when low drives STROBE low.
Active high input. When low tri-state DET n pins.
Analog signal input (internally capacitive coupled).
Active high output, indicates valid DET n.
Most positive power supply input pin.
Internally generated mid-power supply voltage
(output).
Most negative power supply input pin.
Buffered oscillator output (3.58 MHz).
Crystal oscillator or digital clock input.
Crystal oscillator output. Used only with a crystal.
Use X358 when clock output signal is required.
Active low input. Adds 10 dB of gain to input stage.
Compatibility selection. Connection to VSS selects
400 Hz detection. (M-981-02 emulation.) Connection
to V
Power-down operation, logic high inhibits internal
clock. Internal pulldown resistor.
SIGIN pin
External clock
connected to XIN pin
XIN, XOUT with crystal Capacitance
osc. active
X358 pin
tEN,(High Z to Low Z)
tDE,(Low Z to High )Z
DD
or no connection selects 620 Hz detection.
DD
Parameter
- V
SS
= 5V, Ta = 25°C, PD at logical low state, and XRANGE at a logical high state.
DD
.
Funtion
Voltage range
Input impedance
Input spectrum
VIL
VIH
Duty cycle
Internal resistance
Power up (TPU)
VOL
VOH
Duty cycle
CL = 50 pF,
RL = 100 kW
SS
and 620
www.clare.com
SS
.
ISOURCE =1mA
ISINK = -1mA
XOUT open
XOUT open
XOUT open
CL = 20 pF,
CL = 20 pF,
Conditions
CL = 20 pF
PD hi to lo
f=500 Hz
-
-
-
-
-
-
Call Progress Tones
350
400
440
440
440
480
480
350
620
941
425
1
Frequency (HZ)
VDD - 0.2
VDD-0.2
Min
-6.5
250
250
80
40
20
40
-
-
-
-
-
1209
440
480
620
620
Off
Off
Off
Off
Off
Off
2
VDD
Max
0.2
0.2
28
60
10
30
60
ns
ns
-
-
-
-
Reorder (Bell Low)
Bell High Tone
Units
Audible Ring
MW
kHz
DTMF “
kΩ
ms
pF
Alert Tone
%
%
European
Dial Tone
Pre-empt
M-982-02
V
V
V
V
V
Special
Special
Special
Use
*
Notes
”
3