EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 4 5
Title "cat-a-hack"
Date ""
Rev "r2"
Comp "Vasile Vilvoiu (YO7JBP)"
Comment1 "CAT and audio hackable isolation board"
Comment2 "RS232 driver for UART interface"
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Device:C_Small C?
U 1 1 6072AC90
P 6250 2100
AR Path="/6072AC90" Ref="C?"  Part="1" 
AR Path="/5F9E7705/6072AC90" Ref="C?"  Part="1" 
AR Path="/5F9E7705/606D9B1D/6072AC90" Ref="C16"  Part="1" 
F 0 "C16" V 6350 2100 50  0000 C CNN
F 1 "100n" V 6150 2100 50  0000 C CNN
F 2 "" H 6250 2100 50  0001 C CNN
F 3 "~" H 6250 2100 50  0001 C CNN
	1    6250 2100
	0    -1   -1   0   
$EndComp
Text GLabel 6550 2500 2    50   Input ~ 0
XCVR_GND
$Comp
L Device:C_Small C?
U 1 1 6072AC97
P 6250 2500
AR Path="/6072AC97" Ref="C?"  Part="1" 
AR Path="/5F9E7705/6072AC97" Ref="C?"  Part="1" 
AR Path="/5F9E7705/606D9B1D/6072AC97" Ref="C17"  Part="1" 
F 0 "C17" V 6350 2500 50  0000 C CNN
F 1 "100n" V 6150 2500 50  0000 C CNN
F 2 "" H 6250 2500 50  0001 C CNN
F 3 "~" H 6250 2500 50  0001 C CNN
	1    6250 2500
	0    -1   -1   0   
$EndComp
Wire Wire Line
	6450 2100 6350 2100
Wire Wire Line
	6450 2500 6350 2500
$Comp
L custom:MAX3387ECUG+ U?
U 1 1 6072ACA5
P 4500 2100
AR Path="/5F9E7705/6072ACA5" Ref="U?"  Part="1" 
AR Path="/5F9E7705/606D9B1D/6072ACA5" Ref="U8"  Part="1" 
F 0 "U8" H 5250 1600 50  0000 C CNN
F 1 "MAX3387ECUG+" H 5250 1500 50  0000 C CNN
F 2 "SOP65P640X110-24N" H 7900 2100 50  0001 L CNN
F 3 "" H 6300 2700 50  0001 L CNN
F 4 "MAX3387ECUG+, Multichannel Line Transceiver, EIA/TIA-232, RS-232, V.24, V.28 3 3 3 250kbit/s, 3  5.5 V, 24-Pin" H 7850 1750 50  0001 L CNN "Description"
F 5 "1.1" H 6300 2500 50  0001 L CNN "Height"
F 6 "700-MAX3387ECUG" H 7900 2200 50  0001 L CNN "Mouser Part Number"
F 7 "https://www.mouser.co.uk/ProductDetail/Maxim-Integrated/MAX3387ECUG%2b?qs=1THa7WoU59HIOZvt2U3ItQ%3D%3D" H 7850 1450 50  0001 L CNN "Mouser Price/Stock"
F 8 "Maxim Integrated" H 7900 2000 50  0001 L CNN "Manufacturer_Name"
F 9 "MAX3387ECUG+" H 7900 1900 50  0001 L CNN "Manufacturer_Part_Number"
	1    4500 2100
	1    0    0    -1  
$EndComp
Text Notes 800  900  0    157  ~ 31
RS232 line driver
$Comp
L Device:C_Small C?
U 1 1 6072ACAC
P 4200 2100
AR Path="/6072ACAC" Ref="C?"  Part="1" 
AR Path="/5F9E7705/6072ACAC" Ref="C?"  Part="1" 
AR Path="/5F9E7705/606D9B1D/6072ACAC" Ref="C14"  Part="1" 
F 0 "C14" V 4150 2000 50  0000 C CNN
F 1 "100n" V 4150 2250 50  0000 C CNN
F 2 "" H 4200 2100 50  0001 C CNN
F 3 "~" H 4200 2100 50  0001 C CNN
	1    4200 2100
	0    1    1    0   
$EndComp
Wire Wire Line
	4500 2100 4300 2100
Wire Wire Line
	4100 2100 4050 2100
Wire Wire Line
	4050 2100 4050 2200
Wire Wire Line
	4050 2200 4500 2200
$Comp
L Device:C_Small C?
U 1 1 6072ACB6
P 4200 2400
AR Path="/6072ACB6" Ref="C?"  Part="1" 
AR Path="/5F9E7705/6072ACB6" Ref="C?"  Part="1" 
AR Path="/5F9E7705/606D9B1D/6072ACB6" Ref="C15"  Part="1" 
F 0 "C15" V 4150 2300 50  0000 C CNN
F 1 "100n" V 4150 2550 50  0000 C CNN
F 2 "" H 4200 2400 50  0001 C CNN
F 3 "~" H 4200 2400 50  0001 C CNN
	1    4200 2400
	0    1    1    0   
$EndComp
Wire Wire Line
	4300 2400 4500 2400
Wire Wire Line
	4100 2400 4050 2400
Wire Wire Line
	4050 2400 4050 2500
Wire Wire Line
	4050 2500 4500 2500
Wire Wire Line
	6000 2500 6150 2500
Wire Wire Line
	6150 2100 6000 2100
Wire Wire Line
	6450 2100 6450 2500
Wire Wire Line
	6450 2500 6550 2500
Connection ~ 6450 2500
Wire Wire Line
	5150 4000 5150 4100
Text GLabel 3900 2700 0    50   Input ~ 0
XCVR_UART_RX
Wire Bus Line
	3900 2700 4000 2700
Entry Wire Line
	4000 2950 4100 2850
Entry Wire Line
	4000 3050 4100 2950
Entry Wire Line
	4000 3150 4100 3050
Wire Wire Line
	4100 2850 4500 2850
Wire Wire Line
	4100 2950 4500 2950
Wire Wire Line
	4100 3050 4500 3050
Text Label 4100 2850 0    50   ~ 0
XCVR_RXD
$Comp
L Connector_Generic:Conn_01x08 J?
U 1 1 6072ACCF
P 7450 4300
AR Path="/6072ACCF" Ref="J?"  Part="1" 
AR Path="/5F9E7705/6072ACCF" Ref="J?"  Part="1" 
AR Path="/5F9E7705/606D9B1D/6072ACCF" Ref="J7"  Part="1" 
F 0 "J7" H 7350 4700 50  0000 L CNN
F 1 "XCVR_CAT_RS232" H 6900 3800 50  0000 L CNN
F 2 "" H 7450 4300 50  0001 C CNN
F 3 "~" H 7450 4300 50  0001 C CNN
	1    7450 4300
	1    0    0    -1  
$EndComp
Text GLabel 8000 4800 3    50   Input ~ 0
XCVR_GND
Text GLabel 8000 3700 1    50   Input ~ 0
XCVR_13V8
Entry Wire Line
	6600 2850 6700 2950
Entry Wire Line
	6600 2950 6700 3050
Entry Wire Line
	6600 3050 6700 3150
Entry Wire Line
	6600 3300 6700 3400
Entry Wire Line
	6600 3400 6700 3500
Entry Wire Line
	6600 3500 6700 3600
Text Label 4100 2950 0    50   ~ 0
XCVR_CTS
Text Label 4100 3050 0    50   ~ 0
XCVR_DSR
Text Label 6050 3300 0    50   ~ 0
RS232_TXD
Text Label 6050 3400 0    50   ~ 0
RS232_RTS
Text Label 6050 3500 0    50   ~ 0
RS232_DTR
Text Label 6050 2850 0    50   ~ 0
RS232_RXD
Text Label 6050 2950 0    50   ~ 0
RS232_CTS
Text Label 6050 3050 0    50   ~ 0
RS232_DSR
Wire Wire Line
	6000 2850 6600 2850
Wire Wire Line
	6000 2950 6600 2950
Wire Wire Line
	6000 3050 6600 3050
Wire Wire Line
	6000 3300 6600 3300
Wire Wire Line
	6000 3400 6600 3400
Wire Wire Line
	6000 3500 6600 3500
Entry Wire Line
	6700 4000 6800 4100
Entry Wire Line
	6700 4100 6800 4200
Entry Wire Line
	6700 4600 6800 4700
Entry Wire Line
	6700 4300 6800 4400
Entry Wire Line
	6700 4400 6800 4500
Entry Wire Line
	6700 4500 6800 4600
Text Label 6800 4100 0    50   ~ 0
RS232_TXD
Text Label 6800 4200 0    50   ~ 0
RS232_RXD
Text Label 6800 4400 0    50   ~ 0
RS232_RTS
Text Label 6800 4500 0    50   ~ 0
RS232_CTS
Text Label 6800 4600 0    50   ~ 0
RS232_DTR
Text Label 6800 4700 0    50   ~ 0
RS232_DSR
Text GLabel 6850 1650 2    50   Input ~ 0
XCVR_5V
$Comp
L Device:C_Small C?
U 1 1 6072ACF8
P 6450 1900
AR Path="/6072ACF8" Ref="C?"  Part="1" 
AR Path="/5F9E7705/6072ACF8" Ref="C?"  Part="1" 
AR Path="/5F9E7705/606D9B1D/6072ACF8" Ref="C18"  Part="1" 
F 0 "C18" H 6300 1900 50  0000 C CNN
F 1 "100n" H 6300 2000 50  0000 C CNN
F 2 "" H 6450 1900 50  0001 C CNN
F 3 "~" H 6450 1900 50  0001 C CNN
	1    6450 1900
	-1   0    0    1   
$EndComp
Wire Wire Line
	6450 2000 6450 2100
Connection ~ 6450 2100
Wire Wire Line
	5150 1700 5150 1650
Wire Wire Line
	5150 1650 5250 1650
Wire Wire Line
	6450 1650 6450 1800
Wire Wire Line
	5250 1700 5250 1650
Connection ~ 5250 1650
Wire Wire Line
	5250 1650 5350 1650
Wire Wire Line
	5350 1700 5350 1650
Connection ~ 5350 1650
Wire Wire Line
	5350 1650 6450 1650
Wire Wire Line
	6450 1650 6550 1650
Connection ~ 6450 1650
Wire Wire Line
	7650 4300 7650 4250
Wire Wire Line
	7650 4050 7650 4000
$Comp
L Device:C_Small C?
U 1 1 6072AD0D
P 7650 4150
AR Path="/5F9E817D/6072AD0D" Ref="C?"  Part="1" 
AR Path="/5F9E7705/6072AD0D" Ref="C?"  Part="1" 
AR Path="/5F9E7705/606D9B1D/6072AD0D" Ref="C19"  Part="1" 
F 0 "C19" H 7700 4200 50  0000 L CNN
F 1 "100n" H 7700 4100 50  0000 L CNN
F 2 "" H 7650 4150 50  0001 C CNN
F 3 "~" H 7650 4150 50  0001 C CNN
	1    7650 4150
	1    0    0    -1  
$EndComp
Wire Wire Line
	7650 4000 7250 4000
Wire Wire Line
	5350 4000 5350 4400
Wire Wire Line
	5350 4400 5250 4400
Connection ~ 5250 4400
Wire Wire Line
	5250 4400 5250 4000
Wire Wire Line
	5150 4400 5250 4400
Wire Wire Line
	5150 4300 5150 4400
Text GLabel 5600 4400 2    50   Input ~ 0
XCVR_GND
$Comp
L Device:R_Small R?
U 1 1 6072AD1D
P 5150 4200
AR Path="/6072AD1D" Ref="R?"  Part="1" 
AR Path="/5F9E7705/6072AD1D" Ref="R?"  Part="1" 
AR Path="/5F9E7705/606D9B1D/6072AD1D" Ref="R28"  Part="1" 
F 0 "R28" H 5250 4200 50  0000 C CNN
F 1 "10k" H 5250 4300 50  0000 C CNN
F 2 "" H 5150 4200 50  0001 C CNN
F 3 "~" H 5150 4200 50  0001 C CNN
	1    5150 4200
	-1   0    0    1   
$EndComp
Wire Wire Line
	7650 4300 7250 4300
Text Notes 7000 4900 0    39   Italic 0
Screw terminal
$Comp
L Device:Ferrite_Bead_Small FB?
U 1 1 6072AD26
P 6650 1650
AR Path="/6072AD26" Ref="FB?"  Part="1" 
AR Path="/5F9D7A3C/6072AD26" Ref="FB?"  Part="1" 
AR Path="/5F9E7705/6072AD26" Ref="FB?"  Part="1" 
AR Path="/5F9E7705/606D9B1D/6072AD26" Ref="FB6"  Part="1" 
F 0 "FB6" V 6700 1750 50  0000 C CNN
F 1 "Fe" V 6550 1600 50  0000 C CNN
F 2 "" V 6580 1650 50  0001 C CNN
F 3 "~" H 6650 1650 50  0001 C CNN
	1    6650 1650
	0    -1   -1   0   
$EndComp
Wire Wire Line
	6750 1650 6850 1650
$Comp
L Device:D_Schottky_Small D?
U 1 1 6072AD2D
P 8000 3850
AR Path="/5F9E7705/6072AD2D" Ref="D?"  Part="1" 
AR Path="/5F9E7705/606D9B1D/6072AD2D" Ref="D7"  Part="1" 
F 0 "D7" V 8000 3700 50  0000 C CNN
F 1 "TBD" V 8000 4000 50  0000 C CNN
F 2 "" V 8000 3850 50  0001 C CNN
F 3 "~" V 8000 3850 50  0001 C CNN
	1    8000 3850
	0    1    1    0   
$EndComp
Connection ~ 7650 4300
Wire Wire Line
	7250 4100 6800 4100
Wire Wire Line
	6800 4200 7250 4200
Wire Wire Line
	6800 4400 7250 4400
Wire Wire Line
	6800 4500 7250 4500
Wire Wire Line
	6800 4600 7250 4600
Wire Wire Line
	6800 4700 7250 4700
Wire Wire Line
	7650 4000 8000 4000
Wire Wire Line
	8000 4000 8000 3950
Wire Wire Line
	8000 3750 8000 3700
$Comp
L Device:R_Small R?
U 1 1 6072AD3E
P 8000 4150
AR Path="/6072AD3E" Ref="R?"  Part="1" 
AR Path="/5F9D7A3C/6072AD3E" Ref="R?"  Part="1" 
AR Path="/5F9E7705/6072AD3E" Ref="R?"  Part="1" 
AR Path="/5F9E7705/606D9B1D/6072AD3E" Ref="R29"  Part="1" 
F 0 "R29" H 8100 4200 50  0000 C CNN
F 1 "2.2k" H 8150 4100 50  0000 C CNN
F 2 "" H 8000 4150 50  0001 C CNN
F 3 "~" H 8000 4150 50  0001 C CNN
	1    8000 4150
	1    0    0    -1  
$EndComp
$Comp
L Device:LED D?
U 1 1 6072AD44
P 8000 4450
AR Path="/6072AD44" Ref="D?"  Part="1" 
AR Path="/5F9D7A3C/6072AD44" Ref="D?"  Part="1" 
AR Path="/5F9E7705/6072AD44" Ref="D?"  Part="1" 
AR Path="/5F9E7705/606D9B1D/6072AD44" Ref="D8"  Part="1" 
F 0 "D8" V 8000 4550 50  0000 C CNN
F 1 "BG1102W-TR" H 7900 4300 50  0000 C CNN
F 2 "" H 8000 4450 50  0001 C CNN
F 3 "~" H 8000 4450 50  0001 C CNN
	1    8000 4450
	0    -1   -1   0   
$EndComp
Wire Wire Line
	8000 4050 8000 4000
Connection ~ 8000 4000
Wire Wire Line
	8000 4300 8000 4250
Wire Wire Line
	7650 4650 8000 4650
Wire Wire Line
	8000 4650 8000 4600
Wire Wire Line
	7650 4300 7650 4650
Wire Wire Line
	8000 4800 8000 4650
Connection ~ 8000 4650
Text GLabel 2900 3900 0    50   Input ~ 0
XCVR_UART_TX_DRV
Wire Bus Line
	2900 3900 3000 3900
Entry Wire Line
	3000 3400 3100 3300
Entry Wire Line
	3000 3500 3100 3400
Entry Wire Line
	3000 3600 3100 3500
Text Label 4100 3300 0    50   ~ 0
XCVR_TXD
Text Label 4100 3400 0    50   ~ 0
XCVR_RTS
Text Label 4100 3500 0    50   ~ 0
XCVR_DTR
Connection ~ 7650 4000
$Comp
L Device:R_Small R25
U 1 1 6078CA95
P 3400 3700
F 0 "R25" H 3200 3750 50  0000 L CNN
F 1 "10M" H 3200 3650 50  0000 L CNN
F 2 "" H 3400 3700 50  0001 C CNN
F 3 "~" H 3400 3700 50  0001 C CNN
	1    3400 3700
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Small R26
U 1 1 607905A0
P 3650 3950
F 0 "R26" H 3450 4000 50  0000 L CNN
F 1 "10M" H 3450 3900 50  0000 L CNN
F 2 "" H 3650 3950 50  0001 C CNN
F 3 "~" H 3650 3950 50  0001 C CNN
	1    3650 3950
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Small R27
U 1 1 6079137B
P 3900 4200
F 0 "R27" H 3700 4250 50  0000 L CNN
F 1 "10M" H 3700 4150 50  0000 L CNN
F 2 "" H 3900 4200 50  0001 C CNN
F 3 "~" H 3900 4200 50  0001 C CNN
	1    3900 4200
	1    0    0    -1  
$EndComp
Wire Wire Line
	3100 3300 3400 3300
Wire Wire Line
	3100 3400 3650 3400
Wire Wire Line
	3100 3500 3900 3500
Wire Wire Line
	5150 4400 3900 4400
Connection ~ 5150 4400
Wire Wire Line
	3400 3600 3400 3300
Connection ~ 3400 3300
Wire Wire Line
	3400 3300 4500 3300
Wire Wire Line
	3650 3850 3650 3400
Connection ~ 3650 3400
Wire Wire Line
	3650 3400 4500 3400
Wire Wire Line
	3900 4100 3900 3500
Connection ~ 3900 3500
Wire Wire Line
	3900 3500 4500 3500
Wire Wire Line
	3900 4300 3900 4400
Connection ~ 3900 4400
Wire Wire Line
	3900 4400 3650 4400
Wire Wire Line
	3650 4050 3650 4400
Connection ~ 3650 4400
Wire Wire Line
	3650 4400 3400 4400
Wire Wire Line
	3400 3800 3400 4400
Wire Wire Line
	5350 4400 5600 4400
Connection ~ 5350 4400
Wire Bus Line
	4000 2700 4000 3150
Wire Bus Line
	3000 3400 3000 3900
Wire Bus Line
	6700 2950 6700 4600
$EndSCHEMATC