參數(shù)資料
型號(hào)： TPS65950ZXNR
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PBGA209
封裝： 7 X 7 MM, 0.40 MM PITCH, PLASTIC, BGA-209
文件頁數(shù)： 6/167頁
文件大?。?/td> 2566K
代理商： TPS65950ZXNR
UART_TX
DM
DP
UART_RX
UART_CTS
RTSO
CTSI
UART_RTS
CK5
CK6
CK7
CK8
CK9
CK10
CK11
CK12
032-051
7.2.2
USB-CEA Carkit Port Timing
TPS65950
Integrated Power Management/Audio Codec
www.ti.com
SWCS032 – OCTOBER 2008
Figure 7-4 shows the MCPC UART and handshake mode timings.
Figure 7-4. MCPC UART and Handshake Mode Timings
CEA carkit mode lets the link communicate through the USB PHY to a remote carkit in CEA audio + data
during audio (DDA) mode as defined in the CEA-936A specification. In this mode, the ULPI data bus is
redefined as a 2-pin UART interface, which exchanges data through a direct access to the FS/LS analog
transmitter and receiver.
UART data are sent and received on the USB D+/D– pads. D+/D– are also used in this mode to carry
audio I/O signals.
Table 7-2 assumes testing over the recommended operating conditions (see the CEA-936A specification).
Table 7-2. USB-CEA Carkit Interface Timing Parameters
Parameter
Min(1)
Max(2)
Unit
tPH_DP_CON
Phone D+ connect time
100
ms
tCR_DP_CON
Carkit D+ connect time
150
300
ms
tPH_DM_CON
Phone D– connect time
10
ms
tPH_CMD_DLY
Phone command delay
2
ms
tPH_MONO_ACK
Phone mono acknowledge
10
ms
tPH_DISC_DET
Phone D+ disconnect time
150
ms
tCR_DISC_DET
Carkit D– disconnect detect
50
150
ms
tPH_AUD_BIAS
Phone audio bias
1
ms
tCR_AUD_DET
Carkit audio detect
400
800
s
tCR_UART_DET
Carkit UART detect (DDA enabled)
700
1200
ns
tPH_STLO_DET
Phone stereo D+ low detect
30
100
ms
tPH_PLS_POS
Phone D– interrupt pulse width
200
600
ns
tCR_PLS_NEG
Carkit D+ interrupt pulse width
200
600
ns
tDAT_AUD_POL
DDA polarity
20
60
ms
(1)
Min = Minimum value
(2)
Max = Maximum value
USB HS 2.0 OTG Transceiver
103
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