LMH6401_16 Datasheet, PDF (8/48 Pages) Texas Instruments – LMH6401 DC to 4.5 GHz, Fully-Differential, Digital Variable-Gain Amplifier

LMH6401
SBOS730A – APRIL 2015 – REVISED MAY 2015
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7.6 SPI Timing Requirements⁽¹⁾
At T_A = 25°C, VS– = –2.5 V, VS+ = 2.5 V, VOCM = 0 V, R_LOAD = 200-Ω differential (R_{o(internal, diff)} = 20 Ω), V_O = 2 V_PPD, and A_V
= 26 dB, unless otherwise noted. Limits set by bench verification and simulation.
MIN
NOM
MAX UNIT
f_{s_c}
SCLK frequency
t_PH
SCLK pulse duration, high
t_PL
SCLK pulse duration, low
t_SU
SDI setup
t_H
SDO hold
t_IZ
SDO tri-state
t_ODZ
SDO driven to tri-state⁽²⁾
t_OZD
SDO tri-state to driven
t_OD
SDO output delay⁽²⁾
t_CSS
CS setup⁽³⁾
t_CSH
CS hold
t_IAG
Inter-access gap
50 MHz
10
ns
10
ns
3
ns
3
ns
3
ns
5
ns
3
ns
3
ns
3
ns
3
ns
20
ns
(1) Ensured by design.
(2) Reference to negative edge of SCLK.
(3) Reference to positive edge of SCLK.
8
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