LV25400W_0712 Datasheet, PDF (28/42 Pages) Sanyo Semicon Device – For Automotive Applications DSP Tuner Front End

LV25400W
DO pin control data (1)
ULD DT1 DT0
DO pin
0 0 0 Low when not locked.
0 0 1 Monitor 1 (unused)
0 1 0 Monitor 2 (unused)
0 1 1 (See DO control (2))
100
Open
1 0 1 Monitor 1 (unused)
1 1 0 Monitor 2 (unused)
1 1 1 (See DO control (2))
DO pin control data (2)
IL1 IL0
IN
00
Open
0 1 The I3 pin state (unused)
1 0 The I2 pin state (unused)
1 1 The I1 pin state (unused)
IN2 setting
A A A A B B B B ^IN
32103210
00101001
Address Code
LLLLLLLLLLLLL LLL LLLLLLHLLLLLHLL L
(20) (19) (18)
(17) (16) (15) (14)
(13)
(12) (11) (10)
(9)
Charge pump
control
0 Normal operation
1 ^Stopped
IC test mode
These bits are
normally set to :
TEST0 = 0
TEST1 = 0
TEST2 = 0
Two-tuner
crystal oscillator
buffer switching
0 Normal operation
1 ^Stopped
IF gain
variation correction
IN2 D15-12
(Wide out side)
0 0 0 0 +5dB
0001
0010
0011
0100
0101
0110
↓ Crystal oscillator selection
↓ _{XS1 XS0 X'tal OSC}
↓_{0 0}
↓_{0 1}
4.5MHz
7.2MHz
↓ 1 0 20.5MHz*
↓ ^{1 1 Illegal value}
0 1 1 1 ↓ *Use of a 20.5MHz crystal
↓ ^{requires a separate hardware}
↓ ^{modification.}
1010
1011
1100
1101
1110
1111
↓
↓
↓
↓
↓
-5dB
2.7V REG ADJ
0 0 -23mV
0 1 (Center value)
1 0 +23mV
1 1 +64mV
IC internal signals
I/O ports
Control data
0 : input, 1 : output
Normally set to 0.
Unlock detection switching
UL1 UL0 φE detection width Detection pin output
0
0
1
1
Dead zone control
0 Stopped
Open
1
0
φE is output directly
0
±0.5µs φE is delayed by 1 to 2 ms.
1
±1µs φE is delayed by 1 to 2 ms.
DZ1 DZ0 Dead zone mode
00
01
10
11
DZA
DZB
DZC
DZD
X'tal OSC ADJ
[When a 4.5MHz oscillator
element is used]
0 0 0 Xtal (Center value)
001 ↓
010 ↓
011 ↓
100 ↓
101 ↓
110 ↓
1 1 1 +150Hz
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