Datasheet > SKY73103

SKY73103

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
思佳讯 - SKYWORKS		开关
页数	文件大小	规格书
18页	172K
描述
1460-1665 MHz High Performance VCO/Synthesizer With Integrated Switch

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数据手册

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SKY73103 数据手册

PRELIMINARY DATA SHEET • SKY73103 VCO/SYNTHESIZER

Table 4. Load Register Word 0 (Programs the Operation Mode Register) (1 of 2)

Parameter

Function

State Description

Recommended

Operational Value

(Binary)

wd_0, wd_1

cp_output

Address bits [1:0]. Must be set to 00b (see

Table 3)

Charge pump setting [4:2]

Bits [4:2]:

Application

dependent

(see Table 11)

0 0 0 = 200 µA

0 0 1 = 400 µA

0 1 0 = 600 µA

0 1 1 = 800 µA

1 0 0 = 1000 µA

1 0 1 = 1200 µA

1 1 0 = 1400 µA

1 1 1 = 1600 µA

cp_delay

Charge pump delay [6:5]

Bits [6:5]:

0 0 = 2 nsec

0 1 = 4 nsec

1 0 = 7 nsec

1 1 = 9 nsec

pd_polar

Polarity of phase detector [7]

Bit [7]:

0 = negative

1 = positive

cp_tristate

Tri-state selection for the transmit PLL

charge pump output [8]

Bit [8]:

0 = charge pump in normal functional mode

1 = charge pump disabled/tri-stated

rsvd

Reserved [9]

Reserved

sd_sel

Internal operating voltage control bit for Σ∆

Bit [12] Bit [11] Bit [10]: N-Cntr/R-Divider Mod Dig

100

synthesizer [10]

Voltage

Note: this bit needs to be programmed

together with bits [11] and [12].

0 V

1.8 V

2.4 V

1.8 V

2.4 V

1.8 V

2.4 V

nr_sel

Internal operating voltage control bit for N-

counter and R-divider [11]

This bit needs to be programmed together with bits [10] and [12].

This bit needs to be programmed together with bits [10] and [11].

Bits [14:13]:

–

See sd_sel parameter (bit [10])

pll_en

Internal operating voltage control bit for PLL

[12]

See sd_sel parameter (bit [10])

ref_bw_sel

Reference buffer bandwidth [14:13]

Application

dependent

(see Table 11)

0 0 = 20 MHz

0 1 = 30 MHz

1 0 = 40 MHz

1 1 = 50 MHz

test_mux

Lock detect and diagnostic output select

[17:15]

Bits [17:15]:

000

0 0 0 = lock detect output

0 0 1 = R-divider output

0 1 0 = N-divider output

0 1 1 = not used

1 0 0 = not used

1 0 1 = not used

1 1 0 = not used

1 1 1 = DPLL test

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

200649B • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • July 19, 2007

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