LV23014T Datasheet, PDF (6/17 Pages) Sanyo Semicon Device – Bi-CMOS IC For Mini Component, receiver 1-chip Tuner IC Incorporating PLL

LV23014T
Continued from preceding page.
No.
Control/data
Description
(6)
DO pin
• Data to determine the output of the DO pin.
control data
DOC2 DOC1 DOC0
DO pin state
DOC0
DOC1
DOC2
0
0
0
Open
0
0
1
Low detection of unlock
0
1
0
end-UC (See below)
0
1
1
Open
1
0
0
Open
1
0
1
Low at SD ON
1
1
0
Low at stereo
1
1
1
Open
Related data
UL0, UL1
CTE
• Open selected with power ON reset
* IF counter measurement end check
DO pin
(1) Count start
(2) Count end
(3) CE : HI
(1) DO pin open automatically when end-UC is set and the IF counter starts (CTE = 0→1).
(2) DO pin becomes low, enabling check of the counter end when the IF counter measurement is
over.
(3) DO pin open with serial data input/output (CE pin : Hi)
Note)DO pin open regardless of the DO pin control data (DOC0 to 2) during data input period (IN1
and IN2 modes CE-Hi period).
The DO pin state allows output of the content of internal DO serial data in synchronization with
CL regardless of the DO pin control data (DOC0 to 2) during data input period (OUT mode CE :
Hi period).
(7)
Unlock
• Data to select the phase error (φE) detection width to determine if PLL is locked. Unlock is determined
DOC0
detection data
when the phase error exceeding the detection width occurs.
DOC1
(* : don’t care)
DOC2
UL0, UL1
UL1 UL0
φE Detection width
Detection output
0
0
0
1
1
*
Stop
0
±6.67μs
Open
φE output directly
φE extended by 1 to 2ms
* unlock : DO pin becomes Low and the serial data output becomes UL = 0.
(8)
Phase
• Data to control the dead band of phase comparator.
comparator
control data
DZ1 DZ0
0
0
Deadband mode
DZA
DZ0, DZ1
0
1
1
0
DZB
DZC
1
1
DZD
Dead band : DZA < DZB < DZC < DZD
(9)
Output port data
• Data to determine the output of output ports BO1
BO1
“Data” = 0 : OPEN
1 : Low
(10)
Charge pump
• Data for forced control of the charge pump output
control data
DLC Charge pump output
DLC
0
Normal operation
1
Forced Low
When the VCO control voltage (Vtune) develops dead lock because of stop of oscillation of VCO at
0V, set the charge pump output to LOW and Vtune to VCC to escape the dead lock. (Dead lock
clear circuit)
(11)
IFS
• Normally, set data = 1. Setting the data = 0 causes worsening of the input sensitivity, resulting in decrease
of the sensitivity by about 10 to 30mVrms.
(12)
LSI test data
• LSI test data
TEST0
TEST0 to 2
TEST1
All to be set to “0”
TEST2
All set to 0 for power ON reset
(13)
DNC
• Set data = 0.
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No.A1205-6/17