ZX-VGA - COMPONENTS
| Version
for ZX Spectrum 128 / +2 / +2A / +3
RESISTORS: R1,R4,R6,R7,R8,R9,R16 - resistor net 4x10 Ohm - 4x60 Ohm (SMD 1206) R2 - 0 Ohm (SMD 0805) - connect for 3.3V version of oscillator R3 - 0 Ohm (SMD 0805) - connect for 5V version of oscillator R5 - resistor net 4x10 kOhm (SMD 1206) R10,R11 - 10-60 Ohm (SMD 0805) R12,R14,R17 - 1kOhm (SMD 0805) R13,R15,R18 - 510 Ohm (SMD 0805) R19,R20,R21 - 2kOhm (SMD 0805) resistor 120 Ohm (no SMD) - additional resistor for signal BRIGHT CAPACITORS: C1,C2,C3,C4,C6,C8,C10,C11,C13 - 100 nF (SMD 0805) C5,C7,C9 - 10-47uF/16V (electrolytic capacitor - grid 1.8 mm/diameter 4mm) C12 - 10-30 pF (SMD 0805) - can be unused DIODES: D1 - diode (SMD 0805) - can be unused CONNECTORS: CON1 - AWLP14 or pinhead 7x2 CON2 - vga connector (female - 15 pins) MAIN COMPONENTS: U1 - CPLD XILINX XC95144XL-TQ100-10ns (3.3V version) U2 - 74LS245 (SMD) U3 - SRAM 256k x 16 bit, 5V version, package TSOP44II, 10-15 ns Compatible SRAM types: - SR614016HSA12T (TSOP44II) - K6R4016C1D-UI10 (TSOP44II) U4 - voltage regulator SPX1117M3-L-3-3 (LDO 3,3V 0,8A) U5 - 74LS245 (SMD) - unused X1 - CFPS-73-50M Crystal oscillator SMD 7x5mm 50MHz 3,3V |