MC13109FB View Datasheet(PDF) - Motorola => Freescale

Part Name

Description

Manufacturer

MC13109FB

UNIVERSAL CT–1 SUBSYSTEM INTEGRATED CIRCUIT

Motorola => Freescale 

MC13109

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 Measure

Pin

Pin

Symbol

Min

Typ

Average Threshold

Take average of rising

Ref

Ref/ Threshold

–

1.23

Voltage

and falling threshold

BD Out

Hysteresis

–

Ref

Ref/

Hys

–

4.0

BD Out

Input Current

Output High Voltage

Output Low Voltage

Vin = 1.6 V

–

Ref

Iin

–50

5.71

Vref = 1.6, RL = 3.9 kΩ

Ref

BD Out

VOH VCC – 0.1

2.6

Vref = 0.9, RL = 3.9 kΩ

Ref

BD Out

VOL

–

0.12

Max

Unit

–

V

–

mV

+50

nA

–

V

0.4

V

Data

Signal

Data Amp

Output

Figure 3. Data Amp Operation

Data Amp

Hysteresis

Figure 4. Typical Expander Response

10

0

–10

– 20

E Out = –5.0 dBV

– 30

Typical at THD = 5 %

– 40

– 50

– 60

– 40

– 30

– 20

–10

0

10

Rx AUDIO IN (dBV)

MOTOROLA ANALOG IC DEVICE DATA

11

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