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參數資料
型號: TPS65920A2ZCH
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PBGA139
封裝: 10 X 10 MM, 0.65 MM PITCH, GREEN, PLASTIC, NFBGA-139
文件頁數: 89/115頁
文件大小: 1232K
代理商: TPS65920A2ZCH
SWCS037G
– MAY 2008 – REVISED APRIL 2011
7.1.4.3
CEA/UART Driver
Table 7-7 lists the characteristics of the CEA/UART driver.
Table 7-7. CEA/UART Driver
Parameter
Comments
Min
Typ
Max
Unit
UART Driver CEA
Phone UART edge rates
tPH_UART_EDGE
DP_PULLDOWN asserted
1
μs
Serial interface output high
VOH_SER
ISOURCE = 4 mA
2.4
3.3
3.6
V
Serial interface output low
VOL_SER
ISINK =
–4 mA
0
0.1
0.4
V
Carkit Pulse Driver
Pulse match tolerance
QPLS_MTCH
ZCR_SPKR_IN = 60 k
at f = 1 kHz
5%
Phone D
– interrupt pulse
tPH_PLS_POS
ZCR_SPKR_IN = 60 k
at f = 1 kHz
200
600
ns
width
Phone positive pulse voltage
VPH_PLS_POS
ZCR_SPKR_IN = 60 k
at f = 1 kHz
2.8
3.6
V
7.1.4.4
Pullup/Pulldown Resistors
Table 7-8 lists the characteristics of pullup/pulldown resistors.
Table 7-8. Pullup/Pulldown Resistors
Parameter
Comments
Min
Typ
Max
Unit
Pullup Resistors
Bus pullup resistor on upstream
RPUI
Bus idle
0.9
1.1
1.575
port (idle bus)
k
Bus pullup resistor on upstream
RPUA
Bus driven/driver outputs unloaded
1.425
2.2
3.09
port (receiving)
High (floating)
VIHZ
Pullups/pulldowns on DP and DM lines
2.7
3.6
V
Phone D+ pullup voltage
VPH_DP_UP
Driver outputs unloaded
3
3.3
3.6
V
Pulldown Resistors
RPH_DP_DWN
Phone D+/
– pulldown
Driver outputs unloaded
14.25
18
24.8
k
RPH_DM_DWN
High (floating)
VIHZ
Pullups/pulldowns on DP and DM lines
2.7
3.6
V
D+/
– Data Line
Upstream facing port
CINUB
[1.0]
22
75
pF
OTG device leakage
VOTG_DATA_LKG
[2]
0.342
V
Input impedance exclusive of
Driver outputs unloaded (waiver from
ZINP
80
120
k
pullup/pulldown(1)
USB.ORG Standard Committee)
(1)
Waiver received from usb.org standards committee on ZINP 300kmin specification
7.1.5
OTG Electrical Characteristics
The OTG block integrates three main functions:
The USB plug detection function on VBUS and ID
The ID resistor detection
The VBUS level detection
Copyright
2008–2011, Texas Instruments Incorporated
USB Transceiver
75
focus.ti.com: TPS65930/TPS65920
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