Datasheet

Analog Integrated Circuit Device Data
Freescale Semiconductor 104
MC34708
Functional Block Description
R
UART_ON
R
UART_ONFLT
RxD and TxD Switches
• On resistance
• On resistance flatness (from 0.0 to 3.3 V)
-
-
-
-
60
6.0

R
MIC_ON
MIC Switches
• On resistance (at 1.5 V MIC bias voltage)
- 75 150

R
PD_AUDIO
Pull-Down Resistors between SPK_L or SPK_R Pins to GND
- 100 - k
Signal Voltage Range
•MIC
• SPK_L, SPK_R
• D+, D-, RxD, TxD
-
-1.5
-0.3
-
-
-
1.5
1.5
3.6
V
V
A_PSRR
PSRR - From BP (100 mVrms) to DP/DM Pins
•20 Hz to 20 kHz with 32/16  load.
- - -60
dB
T
HD
Total Harmonic Distortions
•20 Hz to 20 kHz with 32/16  load.
- - 0.05
%
V
A_CT
Crosstalk between Two Channels
•20 Hz to 20 kHz with 32/16  load.
- - -50
dB
V
A_ISO
Off Channel Isolation
• Less than 1.0 MHz
- - -100
dB
Power Supply Type Identification
V
DAT_SRC
Data Source Voltage
• Loaded by 0~200 μA
0.5 0.6 0.7
V
I
DAT_SRC
Data Source Current
0.0 - 200 μA
V
DAT_REF
Data Detect Voltage
0.3 0.35 0.4 V
V
CR_REF
Car Kit Detect Voltage
0.8 0.9 1.0 V
I
DAT_SINK
Data Sink Current
• DM pin is biased between 0.15 to 3.0 V
65 100 135
μA
C
DP/DM
DP, DM Pin Capacitance
- 8.0 - pF
R
DP/DM
DP, DM Pin Impedance
• All switches are off (Switch_Open = 0)
- 50 -
M
ID Detection
V
FLOAT
ID FLOAT Threshold
• Detection threshold
- 2.3 -
V
t
ID_FLOAT
ID FLOAT Detection Deglitch Time - 20 - ms
IID
Pull-up Current Source
• When ADC Result is 1xxxx
• When ADC Result is 0xxxx
1.9
30.4
2.0
32
2.1
33.6
μA
I
VCBL
V
VCBL_L
V
VCBL_H
Video Cable Detection
• Detection current
• Detection voltage low threshold
• Detection voltage high threshold
1.0
-
-
1.2
50
118
1.4
-
-
mA
mV
mV
Table 97. USB Interface Electrical Characteristics
Characteristics noted under conditions BP = 3.6 V, V
BUS
= 5.0 V, - 40 C  T
A
 85 C, unless otherwise noted. Typical values
at BP = 3.6 V and T
A
= 25 °C under nominal conditions, unless otherwise noted.
Symbol Characteristic Min Typ Max Unit Notes