ST3917B Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
componentes Descripción
Fabricante
ST3917B Datasheet PDF : 16 Pages
| |||
ST3917A - ST3917B
ABSOLUTE MAXIMUM RATINGS
Symbol
VLN
ILN
VDD
VI
Toper
Tstg
Ptot
Parameter
Positive Line Voltage Continuous
Line Current
Logic Voltage
Maximum Voltage
on PULSE, SEL, HKS, MODE, Ri, Ci, MU/MFI and OSC Pins
Operating Temperature
Storage Temperature
Total Power Dissipation
Value
Unit
12
V
140
mA
7
V
GND(-0.3) VDD(+0.3)
V
-25, +70
°C
-40, +125
°C
700
mW
ELECTRICAL CHARACTERISTICS
(ILN = 10mA to 120mA, f = 1kHz, Tamb = 25°C, VDD = 3V ; unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
VLN
VDD
IDD
ICC
ILED
VMR
IMR
IS
IPL
IPO
VIL
VIH
GTX
AGTX
DTX
NTX
ZMIC
GDTMF
CDTMF
VDTMF
Line Voltage (see Figure 6)
ILN = 4mA
ILN = 15mA
ILN = 120mA
ILN = 15mA, RA = 68kΩ
ILN = 15mA, RB = 39kΩ
Logic Voltage (see Figure 6)
Tone mode
Pulse mode
Supply Current into VDD (see Figure 6) VDD = 3V Tone mode
Pulse mode
Supply Current into VCC (see Figure 6) ILN = 15mA
Supply Current to LED (see Figure 6)
ILN = 10 - 20mA
ILN = 20 - 120mA
Memory Retention Voltage (see Figure 7) VDD = 3V
Memory Retention Current (see Figure 7) VDD = 3V
Off-Hook Standby Current (see Figure 6) VDD = 3V
Pulse Output Sink Current (see Figure 6) VOUT = 0.5V
Pacifier Tone Sink/Source Current
(see Figure 6)
VOUT = 0.5V(Sink)
VOUT = 2.5V(Source)
HKS, Mode, Keyboard Inputs Low
HKS, Mode, Keyboard Inputs High
Transmit Gain (see Figure 9)
VMIC = 2mVRMS
ILN = 15mA, RGTX = 68kΩ
ILN = 60mA, RGTX = 68kΩ
Transmit Gain Variation (see Figure 9)
ILN = 15mA,
VMIC = 2mVRMS
RGTX = 43kΩ
RGTX = 27kΩ
Transmit Distortion (see Figure 9)
ILN = 15mA, VLN = 1VRMS
Transmit Noise (see Figure 9)
ILN = 15mA, VMIC = 0V
Microphone Input Impedance
(see Figure 8)
DTMF Gain (see Figure 10)
DTMF Confidence Tone Attenuation
(see Figure 10)
RDTMF = 2.25kΩ,
CDTMF = 22nF
DTMF level on the line (see Figure 10)
High Frequency Group
Low Frequency Group
RDTMF = 2.25kΩ,
CDTMF = 22nF
2.70
V
3.15 3.50 3.85
V
7.00
V
2.60 3.20 3.70
V
3.60 4.10 4.70
V
2.50
6.00
V
2.00
6.00
V
600 900
µA
300 600
µA
1.3
mA
ILN-
mA
10
ICC
24
mA
1.5
V
1
µA
100 250
µA
1
3
mA
1.00 3.00
mA
0.60 1.00
mA
0.3xVDD V
0.7xVDD
V
49.5 51 52.5 dB
43
45
47
dB
-8
0
dB
-4
dB
-8
dB
2
%
-72
dBmp
50
64
80
kΩ
37
39
41
dB
-34 -31.5 -29
dB
-8
-6
-10 -8
-4
dBm
-6
dBm
PEI Pre-emphasis (see Figure 10)
DIS DTMF Output Distortion (see Figure 10)
1
2
3
dB
5
8
%
6/16
Share Link: 