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DB829 Datenblatt(PDF) 21 Page - CML Microcircuits

Teilenummer DB829
Bauteilbeschribung  Low Voltage Operation
PDF  29 Pages
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Hersteller  CMLMICRO [CML Microcircuits]
Direct Link  http://www.cmlmicro.com
Logo CMLMICRO - CML Microcircuits

DB829 Datenblatt(HTML) 21 Page - CML Microcircuits

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Baseband Signal Processor
21
MX829 PRELIMINARY INFORMATION
© 1998 MX
•COM Inc.
www.mxcom.com Tele: 800 638-5577 336 744-5050
Fax: 336 744-5054
Doc. # 20480160.004
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies.
7.1.3 Operating Characteristics
For the following conditions unless otherwise specified:
Xtal Frequency = 4.032MHz, Bit Rate = 1.2k bits/sec, Noise Bandwidth = Bit Rate,
Audio Level 0dB ref. = 308mVrms at 1kHz, VDD = 5.0V, TAMB = 25°C.
Notes
Min.
Typ.
Max.
Units
DC Parameters
IDD (Tx or Rx) (VDD = 3.3V)
2
2.7
4.0
mA
IDD (DTMF encode off for either Tx or Rx) (VDD = 5.0V)
2
5.0
8.0
mA
IDD (DTMF encode on for either Tx or Rx) (VDD = 5.0V)
2
9
mA
IDD (Powersaved) (VDD = 3.3V)
2
0.3
1.0
mA
IDD (Powersaved) (VDD = 5.0V)
2
0.6
1.5
mA
"C-BUS" Interface
Input Logic "1"
70%
VDD
Input Logic "0"
30%
VDD
Input Leakage Current (logic "1" or "0")
-1.0
1.0
µA
Input Capacitance
7.5
pF
Output Logic "1" (IOH = 120µA)
90%
VDD
Output Logic "0" (IOL = 360µA)
10%
VDD
"Off" State Leakage Current (VOUT = VDD)9
10
µA
AC Parameters
Input Sensitivity (for 0dB output)
Tx Audio Input (MIC)
8
308
mVRMS
Rx Audio Input (DEMODFB)
8
308
mVRMS
Output Drive Level
For 60% Deviation
1, 6, 8
291
308
326
mVRMS
For 100% Deviation
1, 6, 7, 8
1440
mVP-P
Audio Filters
Gain at 1kHz
5
0
dB
Passband Ripple
5
-2.0
0.5
dB
SINAD
5, 14
59
dBp
Signal Path Noise
5
-55
dB
Narrow Audio Bandwidth Setting
Passband Frequencies
5
300
2550
Hz
Stopband Attenuation
(f = 100Hz)
5
3.0
dB
(f = 3400Hz)
5
5.5
dB
(f = 6000Hz)
5
10.5
24
dB
(f = 12500Hz)
5
25
49
dB
Wide Audio Bandwidth Setting
Passband Frequencies
5
300
3000
Hz
Stopband Attenuation:
(f = 100Hz)
5
3.0
dB
(f = 3400Hz)
5
3.0
dB
(f = 6000Hz)
5
10.5
19
dB
(f = 25000Hz)
5
39.5
68
dB



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