* MAX4887 MACROMODEL * ------------------------------ * Revision 0, 09/2008 * ------------------------------ * The MAX4887 triple, high-frequency switch is intended for notebooks & monitors to permit RGB signals to be switched from one driver to one of two loads(1:2) or one of two sources to be connected to one load(2:1). The MAX4887 high-performance switch utilizes n-channel architecture with intenal high-drive pullup from a low-noise charge pump, resulting in very low on-capacitance. * ------------------------------ *Note: ** Macro model is developed using the typical device parameters given in the data sheet with 5 & 3.3 volts power supply. Model does not take care of the device non-linearity with temperature variations. Model characteristics may not match actual device behavior at abnormal operating conditions. ** **Parameters which are not modeled: * 1. Charge-pump noise * 2. Crosstalk. * 3. O/P skew between ports. ** Charge injection effect can be eliminated by removing CGSo term from NCHJ model. * ------------------------------ * Connections * 1 = V+ * 2 = R0 * 3 = G0 * 4 = B0 * 5 = GND * 6 = EN_ * 7 = N.C * 8 = R1 * 9 = G1 * 10 = B1 * 11 = B2 * 12 = G2 * 13 = R2 * 14 = N.C * 15 = SEL * 16 = QP_ **************** .subckt MAX4887 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 M_MAX4887_M12 MAX4887_N12253067 MAX4887_N12252021 5 5 NJNT L=1u W=2u D_MAX4887_CO1_D2 5 MAX4887_N12429343 diodemacro_mostideal G_MAX4887_CO1_G1 MAX4887_N12429343 5 15 MAX4887_N01942 -1E6 D_MAX4887_CO1_D1 MAX4887_N12429343 VCC diodemacro_mostideal I_MAX4887_I9 4 10 DC 0.3nA E_MAX4887_E4 MAX4887_N12445397 5 MAX4887_N12429343 5 1 I_MAX4887_I1 15 5 DC 1uA I_MAX4887_I7 3 9 DC 0.3nA I_MAX4887_I10 1 5 DC 1uA D_MAX4887_CO2_D2 5 MAX4887_N017192 diodemacro_mostideal G_MAX4887_CO2_G1 MAX4887_N017192 5 6 MAX4887_N02007 -1E6 D_MAX4887_CO2_D1 MAX4887_N017192 VCC diodemacro_mostideal G_MAX4887_G2 2 13 MAX4887_ENS2 5 0.173E-6 M_MAX4887_M13 MAX4887_N12253067 MAX4887_N12252041 5 5 NJNT L=1u W=2u M_MAX4887_M5 4 MAX4887_ENS1 10 5 NCHJ L=1u W=525u V_MAX4887_V2 MAX4887_N02007 5 1.9V E_MAX4887_EH1 MAX4887_N122577261 5 1 MAX4887_N122585011 -1E8 M_MAX4887_M3 3 MAX4887_ENS1 9 5 NCHJ L=1u W=525u I_MAX4887_I2 6 5 DC 1uA D_MAX4887_CO3_D2 5 MAX4887_N12259160 diodemacro_mostideal G_MAX4887_CO3_G1 MAX4887_N12259160 5 16 MAX4887_N02021 -1E6 D_MAX4887_CO3_D1 MAX4887_N12259160 VCC diodemacro_mostideal M_MAX4887_M2 2 MAX4887_ENS2 13 5 NCHJ L=1u W=525u V_MAX4887_V3 MAX4887_N02021 5 1.9V G_MAX4887_G5 4 10 MAX4887_ENS1 5 0.173E-6 E_MAX4887_E2P3 MAX4887_ENS2 5 POLY(2) MAX4887_N12268875 5 MAX4887_QPR 5 + 0 0 0 0 1 G_MAX4887_G7 1 5 MAX4887_QPR1 5 3.3333E-3 V_MAX4887_V1 MAX4887_N01942 5 1.9V G_MAX4887_G3 3 9 MAX4887_ENS1 5 0.173E-6 D_MAX4887_D1 MAX4887_N12440181 MAX4887_N124366851 diodemacro_ideal I_MAX4887_I3 16 5 DC 1uA I_MAX4887_I5 2 8 DC 0.3nA C_MAX4887_C3 5 MAX4887_N12443554 10p G_MAX4887_G6 4 11 MAX4887_ENS2 5 0.173E-6 C_MAX4887_C2 5 MAX4887_N12429343 10n M_MAX4887_M6 4 MAX4887_ENS2 11 5 NCHJ L=1u W=525u G_MAX4887_G4 3 12 MAX4887_ENS2 5 0.173E-6 M_MAX4887_M4 3 MAX4887_ENS2 12 5 NCHJ L=1u W=525u R_MAX4887_R3 MAX4887_N124366851 MAX4887_N12443554 0.5 E_MAX4887_E2P1 MAX4887_N12268875 5 POLY(2) MAX4887_EN 5 + MAX4887_N12437544 5 0 0 0 0 0.2 E_MAX4887_EL MAX4887_N12252021 5 1 MAX4887_N122520811 -1E5 M_MAX4887_M1 2 MAX4887_ENS1 8 5 NCHJ L=1u W=525u I_MAX4887_I8 4 11 DC 0.3nA D_MAX4887_D2 MAX4887_N124427190 MAX4887_N12440181 diodemacro_ideal I_MAX4887_I6 3 12 DC 0.3nA E_MAX4887_EH MAX4887_N12252041 5 1 MAX4887_N122521011 1E5 R_MAX4887_R2 MAX4887_N124304441 MAX4887_N12445153 0.5 E_MAX4887_E1 MAX4887_EN 5 VCC MAX4887_N017192 1 C_MAX4887_C10 5 2 6.5p C_MAX4887_C17 4 10 0.15p E_MAX4887_E2 MAX4887_QPR1 5 VCC MAX4887_N12259160 0.03 C_MAX4887_C1 5 MAX4887_N12445153 10p G_MAX4887_G1 2 8 MAX4887_ENS1 5 0.173E-6 V_MAX4887_V6 MAX4887_N12252939 5 5V C_MAX4887_C15 3 9 0.15p V_MAX4887_VH MAX4887_N122521011 5 5.5V E_MAX4887_E2P4 MAX4887_ENS1 5 POLY(2) MAX4887_N12269764 5 MAX4887_QPR 5 + 0 0 0 0 1 C_MAX4887_C18 4 11 0.15p M_MAX4887_INV1_M1 MAX4887_N12437544 MAX4887_N12443554 5 5 NMOS L=1u + W=2u M_MAX4887_INV1_M2 MAX4887_N12437544 MAX4887_N12443554 VCC VCC PMOS L=1u + W=4u D_MAX4887_D4 MAX4887_N124449320 MAX4887_N12445397 diodemacro_ideal M_MAX4887_INV2_M1 MAX4887_N12485856 MAX4887_N12445153 5 5 NMOS L=1u + W=2u M_MAX4887_INV2_M2 MAX4887_N12485856 MAX4887_N12445153 VCC VCC PMOS L=1u + W=4u C_MAX4887_C14 2 13 0.15p V_MAX4887_VL1 MAX4887_N122585011 5 3.6V C_MAX4887_C13 2 8 0.15p C_MAX4887_C16 3 12 0.15p R_MAX4887_R5 MAX4887_N124449320 MAX4887_N12445153 6 V_MAX4887_VL MAX4887_N122520811 5 3V D_MAX4887_D3 MAX4887_N12445397 MAX4887_N124304441 diodemacro_ideal R_MAX4887_R1 MAX4887_N12252939 MAX4887_N12253067 1k E_MAX4887_E2P2 MAX4887_N12269764 5 POLY(2) MAX4887_N12485856 5 + MAX4887_EN 5 0 0 0 0 0.2 V_MAX4887_V5 MAX4887_QPR MAX4887_QPR1 1V M_MAX4887_M14 MAX4887_N12259160 MAX4887_N122577261 5 5 NJNT L=1u W=2u C_MAX4887_C12 5 4 6.5p E_MAX4887_E3 MAX4887_N12440181 5 VCC MAX4887_N12429343 1 E_MAX4887_E5 VCC 5 MAX4887_N12253067 5 1 R_MAX4887_R4 MAX4887_N124427190 MAX4887_N12443554 6 I_MAX4887_I4 2 13 DC 0.3nA C_MAX4887_C11 5 3 6.5p ****************** .model diodemacro_ideal d(n=0.001) .model diodemacro_mostideal d(IS=1E-12 N=0.000001 BV=35 IBV=1) .model PMOS pmos(VTO=-0.5 KP=50E-6) .model NMOS nmos(VTO=0.5 KP=100E-6) .model NJNT nmos(VTO=0.5 KP=50E-2) .model NCHJ nmos(VTO=0.5 KP=100E-6 CGSo=11.1E-9) .ends MAX4887 ******************