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參數(shù)資料
| 型號(hào)： | MC13109FTA |
| 廠商： | MOTOROLA INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | Universal Cordless Telephone Subsystem IC |
| 中文描述： | TELECOM, CORDLESS, RF AND BASEBAND CIRCUIT, PQFP48 |
| 封裝： | PLASTIC, TQFP-48 |
| 文件頁數(shù)： | 11/28頁 |
| 文件大?。?/td> | 395K |
| 代理商： | MC13109FTA |
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MC13109
11
MOTOROLA ANALOG IC DEVICE DATA
ELECTRICAL CHARACTERISTICS
(continued)
Low Battery Detect
An external resistor divider is connected to the “Ref” input
pin to set the threshold for the low battery detect. The voltage
at the “Ref” input pin is compared to an internal 1.23 V
Bandgap reference voltage. The “BD Out” pin is open
collector and requires and external pull–up resistor to VCC.
(Test Conditions: VCC = 2.6 V, TA = 25
°
C.)
Characteristic
Condition
Input
Pin
Measure
Pin
Symbol
Min
Typ
Max
Unit
Average Threshold
Voltage
Take average of rising
and falling threshold
Ref
Ref/
BD Out
Threshold
–
1.23
–
V
Hysteresis
–
Ref
Ref/
BD Out
Hys
–
4.0
–
mV
Input Current
Vin = 1.6 V
Vref = 1.6, RL = 3.9 k
Vref = 0.9, RL = 3.9 k
–
Ref
Iin
–50
5.71
+50
nA
Output High Voltage
Ref
BD Out
VOH
VOL
VCC – 0.1
–
2.6
–
V
Output Low Voltage
Ref
BD Out
0.12
0.4
V
Figure 3. Data Amp Operation
Data
Signal
Data Amp
Data Amp
Output
Hysteresis
E
0
Figure 4. Typical Expander Response
Rx AUDIO IN (dBV)
– 30
– 40
– 50
– 60
– 40
– 30
– 20
–10
0
– 20
–10
E Out = –5.0 dBV
Typical at THD = 5 %
10
10
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