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LV25400W_0712 Datasheet(PDF) 15 Page - Sanyo Semicon Device

Part No. LV25400W_0712
Description  For Automotive Applications DSP Tuner Front End
Download  42 Pages
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Maker  SANYO [Sanyo Semicon Device]
Homepage  http://www.ssdc-jp.com/eng/
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LV25400W_0712 Datasheet(HTML) 15 Page - Sanyo Semicon Device

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LV25400W
No.A0633-15/42
Equivalent Circuits
Pin No.
Pin
Description
Equivalent Circuit
1
FE.GND
8V GND (F.E.)
2
OSC VCC
Dedicated oscillator system power
supply
8V VCC (VCO.)
3
4
FM/AM OSC_B
FM/AM OSC_C
Oscillator connections
5
6
7
8
9
10
11
Tuning voltage output
Low-pass filter output
FET ground
AM filter
FM mode FET
AM mode FET
AM charge pump
FM charge pump
FM mode :
A PLL filter is formed on pins 8
through 11. (Pins 9 and 10 are left
open.)
AM mode :
A PLL filter is formed on pins 7, 9, and
10. In this mode, a low-pass filter is
formed by the internal impedance
(10k
Ω) and an external capacitor.
12
DIGITAL GND
13
XTAL VCC
Dedicated crystal oscillator system
power supply
5V VCC (XTAL)
14
15
X'tal-OSC-IN
X'tal-OSC-OUT
Connect a 4,5MHz crystal element
between pins 14 and 15.
Connect a 10pF capacitor between
pin 14 and ground, and connect a
150pF capacitor between pin 15 and
ground.
Continued on next page.
500
500
VCC(2pin)
5k
5k
333
4
3
3k
5k
VCC
PIN58
VDD
PIN23
1k
2.2k
1.3k
30k
220pF
2200pF
VT
tentative
11
10
9
8
7
5
6
VCC(PIN13)
ES6
500
500
333
333
333
1k
20k
1k
1.5k
5k
5k
500
35pF
8pF 4pF 2pF
1.5k
1.5k
1.5k
1.5k
Ω 1.5kΩ
17
15
14
AMP
AMP
AMP
ALC
to PLL


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