- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄378981 > CXA3176N (Sony Corporation) Achieving Low Power and High Speed in Paging System IF IC PDF資料下載
參數(shù)資料
| 型號(hào)： | CXA3176N |
| 廠商： | Sony Corporation |
| 英文描述： | Achieving Low Power and High Speed in Paging System IF IC |
| 中文描述： | 實(shí)現(xiàn)低功耗和高速尋呼系統(tǒng)中頻集成電路 |
| 文件頁(yè)數(shù)： | 1/2頁(yè) |
| 文件大?。?/td> | 27K |
| 代理商： | CXA3176N |
V
O
I
C
E
Achieving Low Power and High Speed in Paging System
IF IC for High-Speed Paging Systems
CXA3117N, CXA3176N, CXA3179N
High-speed paging systems that employ M-ary signals are about to
enter service.
Sony strongly supports this new service with three IF ICs: the
CXA3117N, the CXA3176N, and the CXA3179N.
The CXA3117N, which adopts a comparator system that does not re-
quire an A/D converter, and the CXA3179N, which supports AFC, can
contribute significantly to parts count reductions and thus reduced pro-
duction costs.
The CXA3176N implements a high-speed paging system that uses an
A/D converter and supports AFC.
I
Low current consumption
(CXA3117N/CXA3176N/
CXA3179N)
No A/D converter required in
comparator system adopted
(CXA3117N/CXA3179N)
AFC support (CXA3176N/
CXA3179N)
RSSI dynamic range: 70 dB,
detector output: 600 mVrms
(CXA3176N)
I
I
I
Low Current Consumption
At the same time as incorporating both
a comparator that supports M-ary high-
speed paging systems and a variable cut-
off bit rate filter that responds to
changes in the data rate, these products
achieve a current consumption that is
20% lower than that of the POCSAG
system based CXA1484AN.
Comparator System
does not Require an A/D
Converter
In the first generation of M-ary high-
speed paging systems, the output of the
detector was input to an A/D
converter to acquire the two bits of data
in the signal. However, the comparator-
based system used in these products
uses three comparators to perform a
signal-processing operation equivalent
to A/D conversion and acquire the two
bits of digital data. This allows circuits
that were previously implemented as
two chips, an IF IC and an A/D
converter, to be implemented in a single
IF IC.
AFC Support
A circuit that cancels the frequency off-
set of the receiver oscillator is required
in 900-MHz band paging systems and
in narrow band systems. The
CXA3176N and CXA3179N include an
offset detection circuit that uses S-curve
characteristics, and implement an AFC
circuit by feeding back the output of this
circuit to the first oscillator.
I am convinced that the compara-
tor system proposed by Sony and
used in the CXA3117N and
CXA3179N will become the main-
stream in M-ary paging systems in
the future. I think that once you
have tried these devices you will
appreciate the validity of this
system. Please look into these
products for use in your systems.
RSSI Dynamic Range: 70 dB,
Detector Output: 600 mVrms
In addition to providing the extremely
wide RSSI dynamic range of 70 dB, the
CXA3176N also features excellent tem-
perature characteristics. These allow the
CXA3176N to be used in a wide range
of applications. Furthermore, the
CXA3176N detector output operating
point is automatically adjusted to
achieve an optimal dynamic range in
response to the supply voltage.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CXA3179N | IF Amplifier for M-ary FSK Pagers (AFC Supported) |
| CXA3185 | All Band TV Tuner IC with On-chip PLL |
| CXA3186N | All Band TV Tuner IC With On-chip PLL(全波段電視調(diào)諧器芯片(片內(nèi)含鎖相環(huán)電路)) |
| CXA3188N | 2ch. Read/Write Amplifier for Thin Film Head of Hard Disk Drive |
| CXA3197 | 10-bit 125MSPS D/A Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CXA3179N | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:IF Amplifier for M-ary FSK Pagers (AFC Supported) |
| CXA3185 | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:All Band TV Tuner IC with On-chip PLL |
| CXA3185N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:All Band TV Tuner IC with On-chip PLL |
| CXA3186N | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:All Band TV Tuner IC with On-chip PLL |
| CXA3188N | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:2ch. Read/Write Amplifier for Thin Film Head of Hard Disk Drive |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。