欢迎访问ic37.com |
会员登录 免费注册
发布采购

HT9015 参数 Datasheet PDF下载

HT9015图片预览
型号: HT9015
PDF下载: 下载PDF文件 查看货源
内容描述: RF单芯片无绳电话 [RF Single Chip for Cordless Phone]
分类和应用: 电信集成电路电信电路LTE电话
文件页数/大小: 23 页 / 206 K
品牌: HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
 浏览型号HT9015的Datasheet PDF文件第6页浏览型号HT9015的Datasheet PDF文件第7页浏览型号HT9015的Datasheet PDF文件第8页浏览型号HT9015的Datasheet PDF文件第9页浏览型号HT9015的Datasheet PDF文件第11页浏览型号HT9015的Datasheet PDF文件第12页浏览型号HT9015的Datasheet PDF文件第13页浏览型号HT9015的Datasheet PDF文件第14页  
Preliminary  
HT9015  
Functional Description  
The HT9015 is a signal chip RF IC for cordless  
phone applications. It has applications for  
46/49MHz cordless phones as well as CT0 cord-  
less phones that have frequency bands between  
20MHz and 60MHz. This chip enables external  
components in the base set and hand set radio  
section application circuits to be reduced.  
in the shift register is sent into the latch to con-  
trol the block, see the input timing for serial  
data as shown below.  
Serial data format of four registers  
According to previous input timing Specs, the  
HT9015 can be easily set up using four regis-  
ters. The TX divider determines the TX PLL  
locked frequency; the RX divider determines  
the RX PLL locked frequency; the REF divider  
determines the TX and RX PLL frequency ref-  
erence which is also called channel space. The  
control register is an important unit which con-  
trols the radio link, voice control and power sav-  
ing during base set and hand set  
communication.  
The HT9015 is manufactured or a special pro-  
cess called BiCMOS, or bipolar process and  
CMOS process. Because the RF and IF parts  
need high frequency actions such as mixer,  
VCO, IF amplifier and demodulator, those  
parts are implemented in high performance bi-  
polar circuits. The other digital functions are  
designed using CMOS circuits. Sometimes this  
chip is known as ²COMBO², the meaning of  
COMBO is one chip combined with RF, IF and  
PLL parts.  
All data format contains 20 bits, but some regis-  
ters need only 16 bits, They have a common  
field of 20 bits data format called ²code² which  
determine what data belongs to whom. See the  
table below.  
The HT9015 provides data latch interface con-  
trolled by a microcontroller. There are four in-  
ternal registers inside the HT9015; TX  
(transmitter) divider, RX (receiver) Divider,  
REF (reference) divider and Control Register.  
All registers can be set through the data latch  
control interface. The data latch control inter-  
face contains DATA, CLK and STB control sig-  
nals.  
Code  
Register  
REF register  
TX register  
1
1
0
0
1
0
1
0
RX register  
Control register  
Input timing for serial data  
Data is read on the timing of the rising edge of  
CLK. When STB receives a high signal, DATA  
Four register selection  
³
0
.
m
s
2
³
m
1 s  
³
0
m
. s 2  
C
L
K
³
0
m
. s 2  
D
A
T
A
³
0
.
m
s
1
³
0
m
. s 1  
³
0
m
. s 2  
S
T
B
³
0
m
. s 2  
O
p
e
r
a
t
i
o
n
S
t
a
t
e
P
r
e
v
i
o
u
s
S
t
a
t
e
N
e
w
S
t
a
t
e
Figure 1 Input timing for serial data  
10  
April 10, 2000