參數(shù)資料
型號(hào)： LA9247T
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PDSO36
封裝： 0.275 INCH, TSSOP-36
文件頁(yè)數(shù)： 4/6頁(yè)
文件大?。?/td> 78K
代理商： LA9247T
LA9247T
No.N8219-4/6
Pin Functions
Pin No.
Symbol
I/O
Description
1
BHC
RF AGC detection bottom hold capacitor connection
2
PHC
RF AGC detection peak hold capacitor connection
3
RFAO
O
RF amplifier output
4
GND1
I
RF signal system ground
5
RFIN
I
Pickup voltage output connection. Inputs the RF addition signal from the pickup.
6
VCC3
I
3.3V system VCC
7
A
I
Pickup voltage output connection. Generates the FE, REFL, and CSS signals.
8
B
I
Pickup voltage output connection. Generates the FE, REFL, and CSS signals.
9
C
I
Pickup voltage output connection. Generates the FE, REFL, and CSS signals.
10
D
I
Pickup voltage output connection. Generates the FE, REFL, and CSS signals.
11
REFI
Reference voltage bypass capacitor connection
12
VREF
O
Reference voltage output (Vref1 = 2.5V)
13
E
I
Pickup voltage output connection. Generates the TE and TS signals.
14
F
I
Pickup voltage output connection. Generates the TE and TS signals.
15
LDD
O
APC circuit output
16
LDS
I
APC circuit input
17
VREF2
O
Reference voltage output (Vref2 = 1.65V)
18
REFI2
Reference voltage bypass capacitor connection
19
SGC
I
Servo gain control (FE, TE, TS, and REFL signals)
20
TBAL
I
TE balance adjustment (TE and TS signals)
21
FBAL
I
FE balance adjustment (FE signal)
22
LDON
I
Laser on/off, laser power increase control
23
VCC2
I
Servo signal system VCC (5V)
24
GHS
I
RF and servo signal gain switch (0dB or +14dB)
25
TS
O
TS signal (used for the TES signal) output (to the DSP)
26
TE
O
TE signal output (to the DSP)
27
CSS
O
Center servo signal output (to the DSP)
28
FE
O
FE signal output (to the DSP)
29
REFL
O
Reflection signal output (to the DSP)
30
EQS
I
RF equalizer and PH detection time constant control
31
GND2
I
Servo signal system ground
32
RHLD
I
RF hold control
33
RFSM
O
EFM signal output (to the DSP)
34
VCC1
I
RF signal system VCC (5V)
35
BH
O
RF bottom hold signal output (to the DSP)
36
PH
O
RF peak hold signal output (to the DSP)
Usage Notes
The signal levels of the inputs to the A (pin 7), B (pin 8), C (pin 9), D (pin 10), E (pin 13), and F (pin 14) pins must be set
up to be above the reference voltage (VREF).
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