Datasheet > IM890-IDCC-32.768

IM890-IDCC-32.768

更新时间： 2024-02-22 05:23:40

品牌	Logo	应用领域
ILSI		机械振荡器
页数	文件大小	规格书
10页	1385K
描述
LVCMOS Output Clock Oscillator, 0.032768MHz Nom, SMD, 4 PIN

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IM890-IDCC-32.768 技术参数

是否Rohs认证：	符合	生命周期：	Contact Manufacturer
包装说明：	SMD, 4 PIN	Reach Compliance Code：	compliant
风险等级：	5.35	其他特性：	TR, 7 INCH
最长下降时间：	200 ns	频率调整-机械：	NO
频率稳定性：	100%	JESD-609代码：	e4
安装特点：	SURFACE MOUNT	标称工作频率：	0.032768 MHz
最高工作温度：	85 °C	最低工作温度：	-40 °C
振荡器类型：	LVCMOS	输出负载：	15 pF
物理尺寸：	2.0mm x 1.2mm x 0.6mm	最长上升时间：	200 ns
最大供电电压：	3.63 V	最小供电电压：	1.5 V
表面贴装：	YES	最大对称度：	48/52 %
端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)	Base Number Matches：	1

IM890-IDCC-32.768 数据手册

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MEMS Ultra-Low Power Oscillator, 32.768 kHz Quartz XTAL Replacement

IM890 Series

The IM890 can be factory programmed to generate full-

swing LVCMOS levels. Figure 5 shows the typical LVCMOS

waveform (Vdd = 1.8V) at room temperature into a 15 pF

load.

• NanoDrive™ part number coding: D14.

• Example part number: IM890-ID14-32.768

• V_OH= 1.1V, V_OL= 0.4V (V__sw= 0.70V)

Figure 4. IM890-ID14-32.768

Output Waveform (10 pF Load)

Figure 5. LVCMOS Waveform

Vdd = +1.8 V into 15pF Load

Table 1 shows the supported NanoDrive™ V_OH, V_OLfactory

programming options.

Example:

• LVCMOS output part number coding is always DCC

• Example part number: IM890-4DCC-32.768

Table 1. Acceptable V_OH/V_OLNanoDrive™ Levels

1.225

D28

D27

D26

D25

1.100

D18

D17

D16

D15

D14

D13

1.000

D08

D07

D06

D05

D04

D03

0.900

0.800

0.700

0.600

V_OL/V_OH

0.800

0.700

0.525

0.500

0.400

0.350

Calculating Load Current

D97

D96

D95

D94

D93

No Load Supply Current

D86

D85

D84

D83

When calculating no-load power for the IM890, the core and

output driver components need to be added. Since the output

voltage swing can be programmed for reduced swing between

250 mV and 800 mV, the output driver current is variable.

Therefore, no-load operating supply current is broken into two

sections; core and output driver. The equation is as follows:

D75

D74

D73

D64

D63

Table 2 shows the supported AC coupled Swing levels. The

“AC-coupled” terminology refers to the programming

description for applications where the downstream chipset

includes an internal AC-coupling capacitor, and therefore,

only the output swing is important and V_OH/V_OLare not

relevant.

Total Supply Current (no load) = I_ddCore +(65nA/V)(Vout_pp

)

Example 1: Full-swing LVCMOS

• Vdd = 1.8V

• Idd Core = 900nA (typ)

• Vout_pp= 1.8V (LVCMOS)

Supply Current = 900nA + (65nA/V)(1.8V) =1017nA

Example 2: NanoDrive™ ReducedSwing

• Vdd = 1.8V

Table 2. Acceptable AC-Coupled Swing Levels

• Idd Core = 900nA (typ)

• Vout_pp(Programmable)=V_OH–V_OL=1.1V-0.6V=500mV

Swing

0.800 0.700 0.600 0.500 0.400 0.300 0.250 0.200

AA8 AA7 AA6 AA5 AA4 AA3 AA2 AA1

Output

Code

Supply Current = 900nA + (65nA/V)(0.5V) = 932nA

Example:

Total Supply Current with Load

• NanoDrivepartnumbercoding:AA2.Examplepart

To calculate the total supply current, including the load,

follow the equation listed below. Note the 30% reduction in

power with NanoDrive™.

number: IM890-4AA2-32.768

• Output voltage swing: 0.250V

The values listed in Tables 1 and -2 are nominal values at

25°C and will exhibit a tolerance of ±55 mV across Vdd and

-40°C to 85°C operating temperaturerange.

Total Current = Idd Core + Idd Output Driver (65nA/V*Vout_pp

+ Load Current (C*V*F

)

IM890 Full Swing LVCMOSOutput

Rev 05/17/16_B

Page 5 of 10

ILSI America Phone 775-851-8880 ● Fax 775-851-8882 ●email: e-mail@ilsiamerica.com ●

www.ilsiamerica.com

Specifications subject to change without notice

Page 5 of 10

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