Motorola ASTRO Digital Spectra User Manual

7-80 Schematics, Component Location Diagrams and Parts Lists: ASTRO Spectra Plus VOCON Section
September 5, 2008 6881076C25-E
HLN6837E ASTRO Spectra Plus Voltage Conversion Block Schematic
VOCON TO COMMAND
RESET_OUT_2.85
VIPOUT2_2.85
VIPOUT1-BL_EN_2.85
LH_RESETO_2.85
BUSY_OUT_2.85
TX-RS232_2.85
LH-TX_DATA_2.85
QSCKA_2.85
MOSIA_2.85
ROSC-PSC_EN_2.85
CTS-RS232_2.85
SYN_SEL_2.85
DA_SEL*_2.85
DISP_EN-LATCH_2.85
SPKR_EN_2.85
TXPA_EN*_2.85
K9_4EN-MIC_EN_2.85
5V_EN*_2.85
I
I
I
I
I
I
I
I
I
ENCRYPTION 2.85V FROM/TO BRAVO
I
I
I
I
I
I
I
I
I
I
O
I
ENCRYPTION TO SECURE
I
MISO_SEC_2.85V
MOSI_SEC_2.85V
SS#_3
SSI_SEC_CLK_2.85V
COMMAND TO VOCON
O
O
O
O
O
O
O
O
O
O
LH_RESETI_2.85
LH-RX_DATA_2.85
VIP_IN2_2.85
RX-RS232_2.85
RTS-RS232_2.85
BUSY_RTS_2.85
LOCK_DET_2.85
VIP_IN1_2.85
EMER_2.85
INT_PTT_2.85
C502
0.1uF
Y6
5
Y7
3
GND
10
VCC
20
Y0
18
Y1
16
Y2
14
Y3
12
Y4
9
Y5
7
A2
6
A3
8
A4
11
A5
13
A6
15
A7
17
EN_OE1
1
19
EN_OE2
U502
MC74VHCT244A
A0
2
4
A1
Y6
Y7
GND VCC
Y0
Y1
Y2
Y3
Y4
Y5
A2
A3
A4
A5
A6
A7
EN_OE1
EN_OE2
U501
MC74VHCT244A
A0
A1
5
3
10
20
18
16
14
12
9
7
6
8
11
13
15
17
1
19
2
4
VCC5.0
VCC5.0
0.1uF
C501
Y2
Y3
Y4
Y5
Y6
Y7
A6
A7
EN_OE1
EN_OE2
10
GND VCC
Y0
Y1
A0
A1
A2
A3
A4
A5
MC74VHCT244A
U500
14
12
9
7
5
3
15
17
1
19
20
18
16
2
4
6
8
11
13
R500
2K
VCC2.85
VCC5.0
0.1uF
C500
O
O
O
O
O
O
O
O
O
O
O
O
O
TO CONNECTOR
TX-RS232_5
LH-TX_DATA_5
QSCKA_5
SYN_SEL_5
LH_RESETO_5
DISP_EN-LATCH*_5
TXPA_EN*_5
CTS-RS232_5
BUSY_OUT_5
MOSIA_5
ROSC-PSC_EN_5
DA_SEL*_5
SPKR_EN_5
O
O
O
O
RESET_OUT_5
VIPOUT2_5
VIPOUT1-BL_EN_5
K9_4EN-MIC_EN_5
5V_EN*_5
O
O
O
I
O
ENCRYPTION 5V TO/FROM SECURE
MISO_SEC_5
SS#_5
MOSI_SEC_5
SSI_SEC_CLK_5V
I
I
I
I
I
I
I
I
I
I
FROM CONNECTOR
LOCK_DET_5
LH-RX_DATA_5
BUSY_RTS_5
RTS-RS232_5
RX-RS232_5
LH_RESETI_5
VIP_IN1_5
VIP_IN2_5
EMER_5
INT_PTT_5
Y6
Y7
10
GND
20
VCC
Y0
Y1
Y2
Y3
Y4
Y5
6
A2
8
A3
11
A4
13
A5
15
A6
17
A7
1
EN_OE1
19
EN_OE2
MC74LCX244
U503
2
A0
4
A1
VCC2.85
0.1uF
C503
5
3
18
16
14
12
9
7
Y2
Y3
Y4
Y5
Y6
Y7
A6
A7
EN_OE1
EN_OE2
GND VCC
Y0
Y1
A0
A1
A2
A3
A4
A5
MC74LCX244
U504
0.1uF
C504
14
12
9
7
5
3
15
17
1
19
10 20
18
16
2
4
6
8
11
13
VCC2.85

Motorola ASTRO Digital Spectra Specifications

General

Brand	Motorola
Model	ASTRO Digital Spectra
Category	Radio
Language	English