參數(shù)資料
型號(hào)： DS1077LZ-66+T&R
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 15/21頁(yè)
文件大?。?/td> 0K
描述： IC ECONOSCILLATOR 66.7MHZ 8-SOIC
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
系列： EconOscillator™
類型： 振蕩器，固定頻率（雙路）
頻率： 8.13kHz ~ 66.7MHz
電源電壓： 2.7 V ~ 3.6 V
電流 - 電源： 30mA
工作溫度： -40°C ~ 85°C
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
包裝： 帶卷 (TR)
供應(yīng)商設(shè)備封裝： 8-SOIC
安裝類型： 表面貼裝
DS1077L
3 of 21
OVERVIEW
A block diagram of the DS1077L is shown in Figure 1. The DS1077L consists of four major components:
1) internal master oscillator, 2) prescalers, 3) programmable divider, and 4) control registers.
The internal oscillator is factory trimmed to provide a master frequency (master clk) that can be routed
directly to the outputs (OUT0 & OUT1) or through separate prescalers (P0 & P1). OUT1 can also be
routed through an additional divider (N).
The prescaler (P0) divides the master clock by 1, 2, 4, or 8 to be routed directly to the OUT0 pin.
The prescaler (P1) divides the master clock by 1, 2, 4, or 8 that can be routed to the OUT1 pin or to the
divider (N) input, which is then routed to the OUT1 pin.
The programmable divider (N) divides the prescaler output (P1) by any number selected between 2 and
1025 to provide the main output (OUT1) or it can be bypassed altogether by use of the DIV1 register bit.
The value of N is stored in the N register.
The control registers are user-programmable through a 2-wire serial interface to determine operating
frequency (values of P0, P1, and N) and modes of operation. The register values are stored in EEPROM
and, therefore, only need to be programmed to alter frequencies and operating modes.
PIN DESCRIPTIONS
OUTPUT 1 (OUT1) – This pin is the main oscillator output; its frequency is determined by the control
register settings for the prescaler P1 (mode bits 1M1 and 1M0) and divider N (DIV WORD).
OUTPUT 0 (OUT0) – A reference output, OUT0, is taken from the output of the reference-select MUX.
Its frequency is determined by the control register settings for CTRL0 and values of prescaler P0 (mode
bits 0M1 and 0M0). (See Table 1.)
CONTROL PIN 0 (CTRL0) – A multifunctional input pin that can be selected as a MUX select, output
enable, and/or a power-down. The user-programmable control register values EN0, SEL0, and PDN0
determine its function. (See Table 1.)
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