LV25400W Sanyo Semicon Device, LV25400W Datasheet - Page 28

• Manufacturer Part Number: LV25400W
• Description: DSP Tuner Front End
• Manufacturer: Sanyo Semicon Device

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normally set to :
These bits are
IC test mode
TEST0 = 0
TEST1 = 0
TEST2 = 0
L L L L
(20)
Charge pump
control
ULD
DO pin control data (1)
Dead zone control
DZ1
0
0
0
0
1
1
1
1
0
1
0
0
1
1
DT1
(19) (18)
Normal operation
Stopped
DZ0
0
0
1
1
0
0
1
1
0
1
0
1
L L L L
DT0
0
1
0
1
0
1
0
1
Dead zone mode
Two-tuner
crystal oscillator
buffer switching
Low when not locked.
(See DO control (2))
(See DO control (2))
DZA
DZB
DZC
DZD
Monitor 1 (unused)
Monitor 2 (unused)
Monitor 1 (unused)
Monitor 2 (unused)
0
1
Unlock detection switching
UL1
0
0
1
1
(17)
DO pin
Normal operation
Stopped
L L L
Open
UL0
(16)
0
1
0
1
IF gain
variation correction
IN2 D15-12
(Wide out side)
φE detection width
L L
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
1 0 1 0
1 0 1 1
1 1 0 0
1 1 0 1
1 1 1 0
1 1 1 1
Stopped
±0.5µs
(15)
±1µs
0
L
LV25400W
DO pin control data (2)
IL1
0
0
1
1
+5dB
-5dB
L
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
(14)
φE is delayed by 1 to 2 ms.
φE is delayed by 1 to 2 ms.
Detection pin output
IL0
L
φE is output directly
0
1
0
1
XS1
*Use of a 20.5MHz crystal
requires a separate hardware
modification.
Crystal oscillator selection
0
0
1
1
L L L L L L H L L L L L H L L
Open
The I3 pin state (unused)
The I2 pin state (unused)
The I1 pin state (unused)
(13)
XS0
0
1
0
1
Open
IN
Illegal value
20.5MHz*
X'tal OSC
4.5MHz
7.2MHz
(12)
2.7V REG ADJ
0 0
0 1
1 0
1 1
(11)
-23mV
(Center value)
+23mV
+64mV
X'tal OSC ADJ
[When a 4.5MHz oscillator
element is used]
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
A
3
0 0 1 0 1 0 0 1
(10)
A
2
Xtal (Center value)
↓
↓
↓
↓
↓
↓
+150Hz
Address Code
A
1
0 : input, 1 : output
IC internal signals
Normally set to 0.
A
0
Control data
IN2 setting
I/O ports
B
3
(9)
B
2
B
1
No.A0633-28/42
B
L
0
IN
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