LMH2190 Datasheet, PDF (6/32 Pages) National Semiconductor (TI) – Quad Channel 27 MHz Clock Tree Driver with I2C Interface

LMH2190
SNAS473H – JUNE 2009 – REVISED MAY 2013
www.ti.com
3.5 V DC AND AC ELECTRICAL CHARACTERISTICS ⁽¹⁾⁽²⁾ (continued)
Unless otherwise specified, all limits are specified at T_A = 25°C, V_BAT = 3.5V, f_{SCLK_IN} = 26 MHz, C_OUT = 2.2 µF, V_{DD_IO} = 1.8V
(See Figure 6 ) ⁽³⁾, I_OUT = 1 mA, Registers are in default setting. Boldface limits apply at the temperature extremes.
Symbol
Parameter
Condition
Min ⁽⁴⁾
Typ ⁽⁵⁾
Max ⁽⁴⁾
Units
Clock Request Output (SCLK_REQ)
tp_LH
Propagation Delay, Push-Pull and 50% to 50%
Open Source, Figure 2, ⁽¹⁰⁾
tp_HL
Propagation Delay, Push-Pull and 50% to 50%
Open Drain, Figure 2, ⁽¹⁰⁾
21
32
ns
15
21
V_OH
SCLK_REQ Output Voltage High SCLK_REQ = -500 µA, Push-Pull
Level
Output
1.52
V
SCLK_REQ = -500 µA, Open Source
Output
1.52
V_OL
SCLK_REQ Output Voltage Low SCLK_REQ = 500 µA, Push-Pull Output
Level
SCLK_REQ = 500 µA, Open Drain
Output
0.2
V
0.2
Clock Request Inputs (CLK_REQ1/2/3/4)
t_SET
Setup Time from CLK_REQx to
SCLK_IN, to enable CLKx,
Figure 4, ⁽¹⁰⁾
16
ns
V_IH
CLK_REQ1/2/3/4 Input Voltage
High Level
0.8 x
V_{DD_IO}
V
V_IL
CLK_REQ1/2/3/4 Input Voltage
Low Level
0.2 x
V_{DD_IO}
V
I_IH
CLK_REQ1/2/3/4 Input Current 200 kΩ internal pull down resistor.
High Level
CLK_REQ1/2/3/4 = 1.8V
Without internal / external pull down
resistor. CLK_REQ1/2/3/4 = 1.8V
8.3
12.7
µA
0
0.1
I_IL
CLK_REQ1/2/3/4 Input Current
Low Level
SCL and SDA Inputs, V_ENABLE = 1.8V ⁽¹¹⁾
V_IH
SCL and SDA Input Voltage High
Level
V_IL
SCL and SDA Input Voltage Low
Level
I_IH
SCL and SDA Input Current High
Level
V_IL = V_SS
SCL/SDA = V_ENABLE
-0.1
0
µA
0.8 x
V_ENABLE
V
0.2 x
V_ENABLE
V
0
0.1
µA
I_IL
SCL and SDA Input Current Low
Level
V_OL
SDA Output Voltage Low Level
ENABLE Input
100 kΩ internal Pull-up resistor,
SCL/SDA = V_SS
SDA = 3 mA
-28
-18
µA
0.2
V
V_IH
ENABLE Input Voltage High Level
V_IL
ENABLE Input Voltage Low Level
I_IH
ENABLE Input Current High Level ENABLE = V_OUT
I_IL
ENABLE Input Current Low Level ENABLE = V_SS
1.65
2
V
0.5
V
0.1
µA
-0.1
µA
(10) This parameter is specified by design and/or characterization and is not tested in production.
(11) I²C interface uses IO cells specified at 1.8V typical supply (1.6V Min - 2.0V Max).
6
Submit Documentation Feedback
Product Folder Links: LMH2190
Copyright © 2009–2013, Texas Instruments Incorporated