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參數(shù)資料
| 型號(hào)： | DS1085LZ-12B2+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 17/21頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ECONOSCILLATOR SYNTH 8-SOIC |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 100 |
| 系列： | EconOscillator™ |
| 類型： | 頻率合成器 |
| PLL： | 無 |
| 輸入： | 時(shí)鐘 |
| 輸出： | 時(shí)鐘 |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 1:2 |
| 差分 - 輸入:輸出： | 無/無 |
| 頻率 - 最大： | 66MHz |
| 除法器/乘法器： | 是/無 |
| 電源電壓： | 3 V ~ 3.6 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SOIC |
| 包裝： | 管件 |
DS1085L
5 of 21
REGISTER FUNCTIONS
The user-programmable registers can be used to determine the mode of operation (MUX), operating
frequency (DAC, OFFSET, DIV), and bus settings (ADDR). The functions of the registers are described
in this section, but the details of how these registers are programmed can be found in a later section. The
register settings are nonvolatile, with the values being stored automatically or as required in EEPROM
when the registers are programmed through the SDA and SCL pins.
DAC WORD (Address 08h)
MSB
LSB
MSB
LSB
d9
d8
d7
d6
d5
d4
d3
d2
d1
d0
X
First Data Byte
Second Data Byte
X = Don’t care.
The DAC word (d0–d9) controls the frequency of the master oscillator. The resolution of this register
depends on the step size of the device. The absolute frequency of the device also depends on the value of
the OFFSET register (see Tables 5 and 6).
Table 5. DEVICE DEFAULT SETTINGS
DS1085LZ-5
DS1085LZ-12
DS1085LZ-25
Frequency
DAC
Offset
Frequency
DAC
Offset
Frequency
DAC
Offset
48.58MHz
500
OS
52.3MHz
600
OS
50.9MHz
500
OS
For any given value of OFFSET the master oscillator frequency can be derived as follows:
Frequency = Min Frequency + DAC x Step Size
where: Min frequency is the lowest frequency shown in Table 6 for the corresponding offset.
DAC is the value of the DAC register (0–1023).
Step size is the step size of the device (5kHz, 12.5kHz, or 25kHz).
OS is the decimal, integer value of the 5 MSBs of the RANGE register.
OFFSET BYTE
(Address 0Eh)
MSB
LSB
X
O4
O3
O2
O1
O0
X = Don’t care.
The OFFSET byte (O0–O4) determines the range of frequencies that can be obtained within the absolute
minimum and maximum range of the oscillator. Correct operation of the device is not guaranteed for
values of OFFSET not shown in Table 6.
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| DS1085LZ-12B2+ | 功能描述:可編程振蕩器 3.3V EconOscillator f Synthesizer RoHS:否 制造商:IDT 封裝 / 箱體:5 mm x 7 mm x 1.5 mm 頻率:15.476 MHz to 866.67, 975 MHz to 1300 MHz 頻率穩(wěn)定性:+/- 50 PPM 電源電壓:3.63 V 負(fù)載電容:10 pF 端接類型:SMD/SMT 輸出格式:LVPECL 最小工作溫度:- 40 C 最大工作溫度:+ 85 C 尺寸:7 mm W x 5 mm L x 1.5 mm H 封裝: |
| DS1085LZ-25 | 功能描述:可編程振蕩器 3.3V EconOscillator f Synthesizer RoHS:否 制造商:IDT 封裝 / 箱體:5 mm x 7 mm x 1.5 mm 頻率:15.476 MHz to 866.67, 975 MHz to 1300 MHz 頻率穩(wěn)定性:+/- 50 PPM 電源電壓:3.63 V 負(fù)載電容:10 pF 端接類型:SMD/SMT 輸出格式:LVPECL 最小工作溫度:- 40 C 最大工作溫度:+ 85 C 尺寸:7 mm W x 5 mm L x 1.5 mm H 封裝: |
| DS1085LZ-25+ | 功能描述:可編程振蕩器 3.3V EconOscillator f Synthesizer RoHS:否 制造商:IDT 封裝 / 箱體:5 mm x 7 mm x 1.5 mm 頻率:15.476 MHz to 866.67, 975 MHz to 1300 MHz 頻率穩(wěn)定性:+/- 50 PPM 電源電壓:3.63 V 負(fù)載電容:10 pF 端接類型:SMD/SMT 輸出格式:LVPECL 最小工作溫度:- 40 C 最大工作溫度:+ 85 C 尺寸:7 mm W x 5 mm L x 1.5 mm H 封裝: |
| DS1085LZ-25B2 | 功能描述:可編程振蕩器 RoHS:否 制造商:IDT 封裝 / 箱體:5 mm x 7 mm x 1.5 mm 頻率:15.476 MHz to 866.67, 975 MHz to 1300 MHz 頻率穩(wěn)定性:+/- 50 PPM 電源電壓:3.63 V 負(fù)載電容:10 pF 端接類型:SMD/SMT 輸出格式:LVPECL 最小工作溫度:- 40 C 最大工作溫度:+ 85 C 尺寸:7 mm W x 5 mm L x 1.5 mm H 封裝: |
| DS1085LZ-25B2+ | 功能描述:可編程振蕩器 3.3V EconOscillator f Synthesizer RoHS:否 制造商:IDT 封裝 / 箱體:5 mm x 7 mm x 1.5 mm 頻率:15.476 MHz to 866.67, 975 MHz to 1300 MHz 頻率穩(wěn)定性:+/- 50 PPM 電源電壓:3.63 V 負(fù)載電容:10 pF 端接類型:SMD/SMT 輸出格式:LVPECL 最小工作溫度:- 40 C 最大工作溫度:+ 85 C 尺寸:7 mm W x 5 mm L x 1.5 mm H 封裝: |
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