參數(shù)資料
型號: HT9015
廠商: Holtek Semiconductor Inc.
英文描述: RF Single Chip for Cordless Phone
中文描述: 射頻單芯片無繩電話
文件頁數(shù): 4/23頁
文件大?。?/td> 206K
代理商: HT9015
Pin No.
Pin Name
I/O
Description
7
VCC3
Positive power supply for digital block circuits.
8
LO1
I
ThispinconnectstoLO2pinwithexternalcrystalandcapacitor.
9
LO2
O
This output pin generates a reference frequency used for the
PLL and the second mixer local oscillator when connected to
LO1 pin with an external crystal and capacitor.
10
SIG_OUT
O
This pin outputs four-type states and is selected by an internal
controlregister.ThereareRSSIstateandnoisestateandRX/TX
PLL lock states.
Open drain output.
11
CLK
I
Clock input pin
12
DATA
I
Serial data input pin
13
STB
I
Data strobe control pin
14
FIL_OUT
O
Splatter filter output pin
15
FIL_IN
I
Splatter filter input pin
16
COMP_OUT
O
Compressor output pin
17
C_NF
Normally connected to ground through a capacitor.
18
MIC_OUT
O
Microphone amplifier output pin
19
MIC_IN
I
Microphone amplifier input pin
20
PRE_IN
I
Pre-amplifier input pin
21
PRE_OUT
O
Pre-amplifier output pin
22
EXP_OUT
O
Expander output pin
23
RECE_IN
I
Receiver amplifier input pin
24
RO1
O
Receiver amplifier output pin
25
RO2
O
Receiver amplifier output pin
26
BAT_ALM
O
Battery alarm output pin. When the battery voltage is lower
than the internal setting threshold this pin is active.
Open drain output.
27
RSSI
O
Receiver signal strength indicator output pin, the output signal
depends on the IF amplifier output signal.
28
D_COMP_OUT
O
Data comparator output pin
29
D_COMP_IN
I
Data comparator input pin. Input to comparator to distinguish
digital data from audio.
30
N_FIL_IN
I
Input to noise filter
31
N_FIL_OUT
O
Output from noise filter
HT9015
4
April 10, 2000
Preliminary
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