HT9015 View Datasheet(PDF) - Holtek Semiconductor
Part Name
Description
Manufacturer
HT9015 Datasheet PDF : 23 Pages
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Preliminary
HT9015
Pin No.
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Pin Name
VCC3
LO1
LO2
SIG_OUT
CLK
DATA
STB
FIL_OUT
FIL_IN
COMP_OUT
C_NF
MIC_OUT
MIC_IN
PRE_IN
PRE_OUT
EXP_OUT
RECE_IN
RO1
RO2
BAT_ALM
RSSI
D_COMP_OUT
D_COMP_IN
N_FIL_IN
N_FIL_OUT
I/O
Description
¾ Positive power supply for digital block circuits.
I This pin connects to LO2 pin with external crystal and capacitor.
This output pin generates a reference frequency used for the
O PLL and the second mixer local oscillator when connected to
LO1 pin with an external crystal and capacitor.
This pin outputs four-type states and is selected by an internal
O
control register. There are RSSI state and noise state and RX/TX
PLL lock states.
Open drain output.
I Clock input pin
I Serial data input pin
I Data strobe control pin
O Splatter filter output pin
I Splatter filter input pin
O Compressor output pin
¾ Normally connected to ground through a capacitor.
O Microphone amplifier output pin
I Microphone amplifier input pin
I Pre-amplifier input pin
O Pre-amplifier output pin
O Expander output pin
I Receiver amplifier input pin
O Receiver amplifier output pin
O Receiver amplifier output pin
Battery alarm output pin. When the battery voltage is lower
O than the internal setting threshold this pin is active.
Open drain output.
O
Receiver signal strength indicator output pin, the output signal
depends on the IF amplifier output signal.
O Data comparator output pin
I
Data comparator input pin. Input to comparator to distinguish
digital data from audio.
I Input to noise filter
O Output from noise filter
4
April 10, 2000
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