LMH2190 Datasheet, PDF (11/32 Pages) National Semiconductor (TI) – Quad Channel 27 MHz Clock Tree Driver with I2C Interface

LMH2190
www.ti.com
SNAS473H – JUNE 2009 – REVISED MAY 2013
TYPICAL PERFORMANCE CHARACTERISTICS
Unless otherwise specified, 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 19),
Registers are in default configuration.
7.45
7.40
7.45
77..3450
7.35
7.30
7.30
77..2255
7.20
77..2105
7.10
77..1055
7.10
Supply Current
vs.
Supply Voltage
- All Clocks Toggling
- 22.5 pF Capacitive Load per CLK
85°C
25°C
-40°C
7.05
2.5 3.0 3.5 4.0 4.5 5.0 5.5
V_BAT (V)
Figure 7.
Supply Current
vs.
Input Clock Frequency
6
- No external Capacitor on CLK1/2/3/4
65
- SCLK_IN = 0 to 1.8V Square Wave
- DC Mode
5
4
4
All CLK's Toggling
33
2
2
CLK1 Only Toggling
1
01
0
0
10
20
30
40
FREQUENCY (MHz)
Figure 8.
Supply Current
vs.
Capacitive Load
15
- Appropriate Drive Strength Setting
15 - SCLK_IN = 0 to 1.8V Square Wave
12 - DC Mode
12
99 All CLK's Toggling
6
6
CLK1 Only Toggling
3
3
0
0
0
10
20
30
40
50
CAPACITIVE LOAD (pF)
Figure 9.
LDO Output Voltage
vs.
Supply Voltage
1.80
1.80
1.78
1.78
-40°C
25°C
11..7766
1.74
1.74
1.72
85°C
1.72
1.70
I_OUT = 10 mA
1.70
2.5 3.0 3.5 4.0 4.5 5.0 5.5
V_BAT (V)
Figure 10.
1.82
1.82
1.80
1.80
11..7788
1.76
1.76
1.74
1.74
1.72
1.72
0
LDO Output Voltage
vs.
LDO Output Current
-40°C
25°C
85°C
2
4
6
I_OUT (mA)
Figure 11.
8
10
LDO Output Voltage
vs.
Time
2.0
1.8
1.6
1.4
ENABLE
1.2
V_OUT
1.0
0.8
0.6
0.4
0.2
C_OUT = 2.2 PF
0.0
TIME (50 Ps/DIV)
Figure 12.
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