MK53761N00 데이터 시트보기 (PDF) - STMicroelectronics
부품명
상세내역
제조사
MK53761N00 Datasheet PDF : 11 Pages
| |||
MK53761
ELECTRICAL CHARACTERISTICS (continued)
AC CHARACTERISTICS – TONE MODE
N°
Symbol
Parameter
Min. Typ. Max. Unit Notes
TNK
Tone Output no Key Down
TOi
Tone Output (independent)
PEi
Pre-emphasis, High Band
DCi
Tone Output DC Bias
V + = 2.5
V + = 3.5
– 13
173
1.4
– 12
194
2.0
1.25
1.5
– 80
– 11
218
2.6
dBm
dBm
mVrms
dB
V
1
1, 2
3
RE
Tone Output Load
TRIS
Tone Output Rise Time
DIS
Output Distortion
10
kΩ
4
1.0
ms
5
5.0
8.0
%
3
TR
Tone Signaling Rate
8.0
1/sec
1
TPSD
Pre-signal Delay
2
TISD
Inter-signal Delay (repertory)
TDUR
Tone Output Duration (repertory)
40
54
74
ms
6
ms
ms
Notes :
1. O dBm equals 1 mW power into 600 Ω or 775 mVolts.Important note : the MK53761 is designed to drive a 10 kΩ load. The 600 Ω
load is only for reference.
2. Single tone (low group), as measured at pin 10, TA = 25°C.
3. Supply voltage = 2.5V; RE = 10 kΩ. TOi increases typically of 10mVrms with VS = 6V.
4. Supply voltage = 2.5 volts.
5. Time from beginning of tone output waveform to 90 % of final magnitude of either frequency. Crystal parameters suggested for proper
operation are Rs < 100 Ω, Lm = 96 mH, Cm = 0.02 pF, Ch = 5 pF, f = 3.579545 MHz, and CL = 18 pF.
6. Time from initial key input until beginnig of signaling.
AC CHARACTERISTICS – KEYPAD INPUTS, PACIFIER TONE
(numbers in left hand column refer to the timing diagrams.)
N°
Symbol
Parameter
3
TKD
Keypad Debounce Time
FKS
Keypad Scan Frequency
FPT
Frequency Pacifier Tone
4
TPT
Pacifier Tone Duration
THFP
Hookflash Timing
Note : 1. Crystal oscillator accuracy directly affects these times
Min.
Typ.
32
250
500
30
560
Max.
Unit Notes
ms
1
Hz
1
Hz
1
ms
1
ms
1
AC CHARACTERISTICS – PULSE MODE OPERATION
N°
Symbol
Parameter
PR
Pulse Rate
5
PDP
Predigital Pause
6
IDP
Interdigital Pause
7
TMO
Mute Overlap Time
8
TB
Break Time
9
TM
Make Time
Notes : 1. 10 PPS is the nominal rate.
2. Figure 8 illustrates this relationship.
Min.
Typ.
10
48
740
2
60
40
Max.
Unit
PPS
ms
ms
ms
ms
ms
Notes
1
2
2
2
2
2
8/11
Share Link: 