參數(shù)資料
型號(hào)： SA8028
廠商： NXP Semiconductors N.V.
英文描述： 2.5 GHz sigma delta fractional-N / 760 MHz IF integer frequency synthesizers
中文描述： 2.5千兆赫Σ-Δ小數(shù)N /中頻整數(shù)760兆赫的頻率合成器
文件頁(yè)數(shù)： 18/28頁(yè)
文件大?。?/td> 278K
代理商： SA8028
Philips Semiconductors
Product data
SA8028
2.5 GHz sigma delta fractional-N /
760 MHz IF integer frequency synthesizers
2002 Feb 22
18
2.5.3
Lock detection is available only for the RF and IF phase detector. A ‘0’ in bit <C4:C5> is used for TTL, while a ‘1’ in bit <C4:C5> is used for RTL.
Programming the Lock Detect <C4:C5>
Table 13. Lock detect select
L1
L0
Select
RF/IF (push/pull)
1
0
0
0
1
RF/IF (open drain)
1
0
RF (push/pull)
1
1
IF (push/pull)
NOTE:
1. Combined RF_IF lock detect signal present at the lock pin (push/pull).
2.5.4
Programming the Charge Pump Gain <C7:C6>
The RF phase detector drives the charge pumps on the PHP and PHI pins, while the IF phase detector drives the charge pump on the PHA pin.
The current generated at the R
SET
pin determines both the RF and IF charge pump current values in conjunction with the current gain
programmed by the CP0, CP1 bits in the C–word, as seen in Table 1. For more information on charge pump speed-up mode, refer to section
1.6.
2.5.5
The divider is a fully programmable counter. The allowable divide ratios, A, are from 128 to 16383, bits <C21:C8>. Table 14 shows all the
possible values that can be programmed into the C-word for the IF divider.
Programming the IF Divider for the IF Loop <C21:C8>
Table 14. Allowable Values (A) for the IF Divider
C21
C20
C19
C18
C17
C16
C15
C14
C13
C12
C11
C10
C9
C8
A
0
0
0
0
0
0
1
0
0
0
0
0
0
0
128
0
0
0
0
0
0
1
0
0
0
0
0
0
1
129
0
0
0
0
0
0
1
0
0
0
0
0
1
0
130
…
16382
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
16383
2.6
The D-word is for test purposes only. All bits in this test word should be initialized to 0 for normal operation. When initially applying or
re-applying power to the chip, an internal power-up reset pulse if generated which sets the programming-words to their default values and which
resets the sigma-delta modulator to its “all-0” state. It is also recommended that the D-word be manually reset to all zeros, following initial
power-up, to avoid unknown states.
D-word Register
Table 15. D-word, length 24 bits
Last IN
Address
<21>
<20>
<19>
<18>
<17>
<16>
<15>
<14>
<13>
<12>
<11>
<10>
<9>
<8>
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
Synthesizer Test bits
1
1
0
–
–
–
–
Tdis-spu
Tspu
–
–
–
TreadN
–
–
–
–
–
–
–
–
–
–
–
Default
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
D word address
Fixed to 110.
Tdis-spu
Speed-up mode disabled.
NOTE:
All other test bits must be set to 0 for normal operation.
Tspu: Speed up
Speed-up mode always on.
NOTE:
All other test bits must be set to 0 for normal operation.
TreadN
Used to “request to read” bit settings from bits <B21:12>. For more information on reading out the N value,
refer to Section 2.0, Serial Programming Bus.
相關(guān)PDF資料
PDF描述
SA8028W ECONOLINE: RB & RA - Dual Output from a Single Input Rail- Power Sharing on Output- Industry Standard Pinout- 1kVDC & 2kVDC Isolation- Custom Solutions Available- UL94V-0 Package Material- Efficiency to 85%
SA90-0001 Vector Modulator, 1.94 to 2.24 GHz
SA90-0001-DC000 Dual Linear Driver for Vector Modulators
SA90-0001TR Vector Modulator, 1.94 to 2.24 GHz
SA900 I/Q transmit modulator
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SA8028W 功能描述:鎖相環(huán) - PLL 2.5GHZ 760MHZ PLL SYNTHESIZER RoHS:否 制造商:Silicon Labs 類(lèi)型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray
SA8028W,518 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 2.5GHZ 760MHZ PLL RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel
SA8028W,557 功能描述:鎖相環(huán) - PLL 2.5GHZ 760MHZ PLL RoHS:否 制造商:Silicon Labs 類(lèi)型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray
SA8028WGE 功能描述:IC PLL FREQ SYNTHESIZER 24-HBCC RoHS:是 類(lèi)別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:- 標(biāo)準(zhǔn)包裝:39 系列:- 類(lèi)型:* PLL:帶旁路 輸入:時(shí)鐘 輸出:時(shí)鐘 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 頻率 - 最大:170MHz 除法器/乘法器:無(wú)/無(wú) 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類(lèi)型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:*
SA8028W-T 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 2.5GHZ 760MHZ PLL SYNTHESIZER RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*