MC33121 Просмотр технического описания (PDF) - Motorola => Freescale
Номер в каталоге
Компоненты Описание
производитель
MC33121 Datasheet PDF : 32 Pages
| |||
ELECTRICAL CHARACTERISTICS
(VEE = – 24 V, VDD = + 5.0 V, unless otherwise noted. VCC = VAG = VDG = 0 V, TA = 25°C, see Figure 1.)
Characteristic
Symbol
Min
Typ
LOOP FUNCTIONS
Loop Current
Maximum (RRF = 4.7 k, RL = 10 Ω)
Nominal (RRF = 4.7 k, RL = 367 Ω)
Minimum (RRF = 4.7 k, RL = 796 Ω)
Battery Feed Resistance (RRF = 4.7 k, RL = 796 Ω)*
Hookswitch Threshold
On–to–Off Hook
Off–to–On Hook
IL(max)
37
41
IL
21
27
IL(min)
16
17.5
RBF
475
575
RNF
2.0
4.1
RFN
—
7.7
Fault Detection Threshold
Ring–to–Ground (RL = 367 Ω)
Tip–to–Battery (RL = 367 Ω)
* Calculated from [(24/IL(min)) – 796]
GAIN LEVELS
RRG
RTB
600
1100
600
1100
Transmit Voltage Gain (CP, CN to TXO)
Transmit Voltage Gain (VTX/VL)
VL = 0 dBm, f = 1.0 kHz
VL = 0 dBm, f = 3.4 kHz, with respect to GTX2
VL = + 3.0 dBm, f = 1.0 kHz, with respect to GTX2
VL = – 48 dBm, f = 1.0 kHz, with respect to GTX2
GTX1
GTX2
—
– 0.3
– 0.1
– 0.15
—
0.328
0
0
0
± 0.1
Transmit Distortion (at Pin 11)
(f = 300 Hz to 4.0 kHz, – 40 dBm ≤ VT–R ≤ + 5.0 dBm)
THDT
—
0.05
Receive Current Gain (IEP/IRXI)
Receive Voltage Gain (VL/VRXI) (RL = 600 Ω)
VRXI = 0 dBm, f = 1.0 kHz
VRXI = 0 dBm, f = 3.4 kHz, with respect to GRX2
VRXI = + 3.0 dBm, f = 1.0 kHz, with respect to GRX2
VRXI = – 48 dBm, f = 1.0 kHz, with respect to GRX2
Receive Distortion
(f = 300 Hz to 4.0 kHz, – 40 dBm ≤ VRXI ≤ + 5.0 dBm)
Return Loss (Reference = 600 Ω resistive, f = 1.0 kHz)
GRX1
GRX2
THDR
RL
94
– 0.3
– 0.1
– 0.15
—
—
30
102
0
0
0
± 0.1
0.05
> 40
Transhybrid Rejection (RL = 600 Ω resistive, f = 1.0 kHz, Figure 4)
THR
—
44
LONGITUDINAL SIGNALS (VCM = 1.0 Vrms, see Figures 1 and 2)
2–Wire Balance, f = 1.0 kHz, Zac = 600 Ω (@ Tip/Ring)
4–Wire Balance, f = 1.0 kHz, Zac = 600 Ω (@ VTX)
LB
58
64
58
64
2–Wire Balance, f = 330 Hz, Zac = 600 Ω (@ Tip/Ring)
4–Wire Balance, f = 330 Hz, Zac = 600 Ω (@ VTX)
58
64
58
64
2–Wire Balance, f = 3.3 kHz, Zac = 600 Ω (@ Tip/Ring)
4–Wire Balance, f = 3.3 kHz, Zac = 600 Ω (@ VTX)
2–Wire Balance, f = 1.0 kHz, Zac = 900 Ω (@ Tip/Ring)
4–Wire Balance, f = 1.0 kHz, Zac = 900 Ω (@ VTX)
53
60
53
60
—
62
—
62
Signal Balance, f = 1.0 kHz (Figure 3)
40
55
Longitudinal Impedance, RS = 9100 Ω
Maximum Longitudinal Current, per side
f = 1.0 kHz, ILoop = IL(min), CT = 0.1 µF
VEE = – 42, VCM = 5.12 Vrms
ZLong
150
180
ILong(max)
8.5
16
Max
Unit
mA
51
34
—
675
Ω
kΩ
—
10
Ω
—
—
—
V/V
dB
0.3
0.1
0.15
—
%
—
110
mA/mA
dB
0.3
0.1
0.15
—
—
%
—
dB
—
dB
—
dB
—
—
—
—
—
—
—
—
210
Ω
mA
—
MOTOROLA
MC33121
3
Share Link: 