Technical Note
16/19
BU7963GUW
www.rohm.com
2010.04 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
Frequency Change Sequence
Fig.14 shows the frequency change sequence of BU7963GUW.
PLL_BW of Tx
PCLK of Tx
XSD of Tx
Frequency1
Frequency2
State1
State2
DVDD, MSVDD
of Tx and Rx
PLL_BW[1:0] of Rx
XSD of Rx
State1
State2
t
TX_XSD_OUT
t
TX_XSD_CTL
t
TX_IN_XSD
t
TX_CTL_XSD
t
RX_CTL_XSD
t
RX_XSD_CTL
Tx
：
BU7963GUW
Rx
：
BU7964GUW
Fig.14. Frequency Change Sequence
Table 17. Frequency Change Sequence
Ta=25°C, DVDD=MSVDD=1.80V, and DGND=MSGND=0.00V, unless otherwise noted.
Parameter Symbol
Limits
Unit Conditions
Min Typ Max
PCLK Clock Input Suspend Time
t
TX_XSD_OUT
1.0 - - µs
PCLK Clock Input Restart Time
t
TX_IN_XSD
1.0 -
- µs
Control Signal Hold Time
t
TX_XSD_CTL
2.0 - - µs
Control Signal Setup Time
t
TX_CTL_XSD
2.0 - - µs
