MC34708 datasheet(106/159 Pages) FREESCALE

106 / 159 page

Analog Integrated Circuit Device Data



Freescale Semiconductor

106

MC34708

Functional Block Description

RUART_ON

RUART_ONFLT

RxD and TxD Switches

• On resistance

• On resistance flatness (from 0.0 to 3.3 V)

6.0

RMIC_ON

MIC Switches

• On resistance (at 1.5 V MIC bias voltage)

150

RPD_AUDIO Pull-Down Resistors between SPK_L or SPK_R Pins to GND

100



Signal Voltage Range

•MIC

• SPK_L, SPK_R

• D+, D-, RxD, TxD

-1.5

-0.3

1.5

3.6

VA_PSRR

PSRR - From BP (100 mVrms) to DP/DM Pins

•20 Hz to 20 kHz with 32/16

 load.

-60

THD

Total Harmonic Distortions

•20 Hz to 20 kHz with 32/16

 load.

0.05

VA_CT

Crosstalk between Two Channels

•20 Hz to 20 kHz with 32/16

 load.

-50

VA_ISO

Off Channel Isolation

• Less than 1.0 MHz

-100

Power Supply Type Identification

VDAT_SRC

Data Source Voltage

• Loaded by 0~200 μA

0.5

0.6

0.7

IDAT_SRC

Data Source Current

0.0

200

μA

VDAT_REF

Data Detect Voltage

0.3

0.35

0.4

VCR_REF

Car Kit Detect Voltage

0.8

0.9

1.0

IDAT_SINK

Data Sink Current

• DM pin is biased between 0.15 to 3.0 V

100

135

μA

CDP/DM

DP, DM Pin Capacitance

8.0

RDP/DM

DP, DM Pin Impedance

• All switches are off (Switch_Open = 0)



ID Detection

VFLOAT

ID FLOAT Threshold

• Detection threshold

2.3

tID_FLOAT

ID FLOAT Detection Deglitch Time

IID

Pull-up Current Source

• When ADC Result is 1xxxx

• When ADC Result is 0xxxx

1.9

30.4

2.0

2.1

33.6

μA

IVCBL

VVCBL_L

VVCBL_H

Video Cable Detection

• Detection current

• Detection voltage low threshold

• Detection voltage high threshold

1.0

1.2

118

1.4

Table 97. USB Interface Electrical Characteristics

Characteristics noted under conditions BP = 3.6 V, VBUS = 5.0 V, -40 C  TA  85 C, unless otherwise noted. Typical values

at BP = 3.6 V and TA = 25 °C under nominal conditions, unless otherwise noted.

Symbol

Characteristic

Min

Typ

Max

Unit

Notes

MC34708 Datasheet(PDF) 106 Page - Freescale Semiconductor, Inc

MC34708 Datasheet(HTML) 106 Page - Freescale Semiconductor, Inc

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