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| 型號(hào)： | MC13109A |
| 廠商： | Motorola, Inc. |
| 英文描述： | UNIVERSAL CORDLESS TELEPHONE SUBSYSTEM IC |
| 中文描述： | 通用無(wú)繩電話子系統(tǒng)集成電路 |
| 文件頁(yè)數(shù)： | 6/28頁(yè) |
| 文件大小： | 1307K |
| 代理商： | MC13109A |
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MC13109A
6
MOTOROLA RF/IF DEVICE DATA
ELECTRICAL CHARACTERISTICS (continued)
RSSI/Carrier Detect
Connect 0.01
μ
F to Gnd from “RSSI” output pin to form the
carrier detect filter. “CD Out” is an open collector output
which requires an external 100 k
pull–up resistor to V
CC
.
(RL = 100 k
, VCC = 2.6 V, TA = 25
°
C.)
The carrier detect threshold is programmable through the
MPU interface.
Characteristic
Condition
Input
Pin
Measure
Pin
Symbol
Min
Typ
Max
Unit
RSSI Output Current
Dynamic Range
–
Mix1 In
RSSI
RSSI
–
65
–
dB
Carrier Sense Threshold
CD Threshold Adjust =
(10100)
Mix1 In
CD Out
VT
–
11
–
mVrms
Hysteresis
–
Mix1 In
CD Out
Hys
–
1.5
–
dB
Output High Voltage
Vin = 0
μ
Vrms, RL = 100
k
, CD = (10100)
Mix1 In
CD Out
VOH
–
2.6
–
V
Output Low Voltage
Vin = 100
μ
Vrms, RL =
100 k
, CD = (10100)
Mix1 In
CD Out
VOL
–
0.01
0.4
V
Carrier Sense Threshold
Adjustment Range
Programmable through
MPU Interface
–
–
VTrange
–20
–
11
dB
Carrier Sense Threshold
– Number of Steps
Programmable through
MPU Interface
–
–
VTn
–
32
–
–
Data Amp Comparator
Inverting hysteresis comparator. Open collector output
with internal 100 k
pull–up resistor. A band pass filter is
connected between the “Det Out” pin and the “DA In” pin with
component values as shown in the attached block diagram.
The “DA In” input signal is ac coupled.
(VCC = 2.6 V, TA = 25
°
C)
Characteristic
Condition
Input
Pin
Measure
Pin
Symbol
Min
Typ
Max
Unit
Hysteresis
–
DA In
DA Out
Hys
30
40
50
mV
Threshold Voltage
–
DA In
DA Out
VT
ZI
ZO
VOH
VCC – 0.9
–
VCC – 0.7
12
VCC – 0.5
–
V
Input Impedance
–
–
DA In
k
Output Impedance
–
–
DA Out
–
104
–
k
Output High Voltage
Vin = VCC – 1.0 V,
IOH = 0 mA
DA In
DA Out
VCC – 0.1
2.6
–
V
Output Low Voltage
Vin = VCC – 0.4 V,
IOL = 0 mA
DA In
DA Out
VOL
–
0.04
0.4
V
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