5
4 Technical Descriptions
4.1.
Terminals Description
4.1.1.
Main Block
IC601:C2CBYY001238
PIN
No.
Port
Description
I/O
FM(V) CD(V)
USB(V)
1
N.C.
Not connected.
O
0
0
0
2
AMP_STB
Amp standtby signal.
O
3.31
3.31
3.31
3
N.C.
Not connected.
O
0
0
0
4
N.C.
Not connected.
O
0
0
0
5
N.C.
Not connected.
O
0
0
0
6
N.C.
Not connected.
O
0
0
0
7
TEST
-
0
0
0
8
RESET
Reset signal input.
I
3.94
3.95
3.93
9
N.C.
Not connected.
O
0
0
0
10
VREG
Bypass condenser con-
nected.
-
3.30
3.30
3.30
11
VSS1
GND
-
0
0
0
12
XT1
Main Crystal 1
(32.768KHz) connected.
I
1.30
1.30
1.29
13
XT2
Main Crystal 2
(32.768KHz) connected.
O
1.71
1.71
1.70
14
VDD_CPU
VDD(3.3V)
-
3.30
3.31
3.30
15
INIT_A
Initial distribution setup_A
I
2.73
2.73
2.73
16
INIT_B
Initial distribution setup_B
I
0
0
0
17
INIT_C
Initial distribution setup_C
I
0
0
0
18
INIT_D
Initial distribution setup_D
I
3.30
3.30
3.30
19
INIT_E
Initial distribution setup_E
I
3.30
3.30
3.30
20
VBUS_DET
ECT
V-BUS(4.75V/2~5.25V/2)
I
2.62
2.63
2.62
21
N.C.
Not connected.
O
0
0
0
22
N.C.
Not connected.
O
0
0
0
23
N.C.
Not connected.
O
0
0
0
24
N.C.
Not connected.
O
0
0
0
25
N.C.
Not connected.
O
0
0
0
26
N.C.
Not connected.
O
0
0
0
27
N.C.
Not connected.
O
0
0
0
28
N.C.
Not connected.
O
0
0
0
29
N.C.
Not connected.
O
0
0
0
30
POWER_C
NT
Power IC control signal
output.
O
4.68
4.69
4.68
31
N.C.
Not connected.
O
0
0
0
32
N.C.
Not connected.
O
0
0
0
33
CD_SW1
CD insert detection SW 1.
I
4.70
0
0
34
CD_SW2
CD Mechanism SW 2.
I
4.70
0
0
35
CD_MUTE
CD DSP driver IC mute
control signal.
I
0
3.13
3.10
36
CD_LIMIT_
SW
CD limit detection SW.
I
3.14
3.13
3.11
37
MODE_A
Rotary clock signal A out-
put.
I
0
4.47
4.46
38
MODE_B
Rotary clock signal B out-
put.
I
4.46
4.47
4.46
39
E-
VOL_I2C_S
CK
Electronic Vol-IC commu-
nication
.
O
4.72
4.74
4.72
40
E-
VOL_I2C_S
DA
Electronic Vol-IC commu-
nication.
I/O
4.72
4.74
4.72
41
N.C.
Not connected.
O
0
0
0
42
CD_DMUT
E
CD motor driver IC action
control signal.
O
0
4.73
0
43
CD_S/L
CD connected detection.
O
4.72
4.74
4.71
44
N.C.
Not connected.
O
0
0
0
45
VDDPORT
1
VDD -
4.72
4.73
4.71
46
VSS
GND
-
0
0
0
47
CD_LM+
CD eject control signal.
O
0
0
0
48
CD_LM-
CD loading control signal.
O
0
0
0
49
LCD_CLK
LCD clock signal output.
O
4.67
4.68
4.66
50
LCD_DO
LCD data output.
I
4.77
4.78
4.77
51
LCD_DI
LCD data input.
O
4.62
4.63
4.62
52
EJ_ILL
CD slot illumination
O
4.72
4.73
4.71
53
LCD_CE
LCD chip enable control
signal output.
O
0
0
0
54
REMO_IN
Remote signal input.
I
4.67
4.69
4.67
55
iPOD_CNT USB iPod communication
request signal output.
O
4.70
4.72
4.69
56
PWR_LED
POWER_LED control sig-
nal output.
O
0
0
0
57
N.C.
Not connected.
O
0
0
0
58
DSP_PRES
ET
DSP reset control signal
output.
O
4.72
4.73
4.71
59
DSP_CE
DSP chip enable control
signal output.
O
0
2.31
2.30
60
DSP_BUSY
B
DSP busy control signal
input.
I
3.13
2.91
2.92
61
OSCCTL12 DSP standby control
mode.
O
0
0
0
62
OSCCTL13 DSP standby control
mode.
O
0
0
0
63
DSP_CMD DSP command control
data output.
O
4.72
4.23
4.22
64
DSP_DATA DSP control data signal
input.
I
0
2.24
1.96
65
DSP_CL
DSP clock control signal
output.
O
4.72
4.71
4.69
66
USB_IN
USB device connection
signal detection input.
I
0
0
3.10
67
BEEP
Beep sound control signal
output.
O
0
0
0
68
CMD_ERR DSP Error.
I/O
0
0
0
69
iPOD_TX_
UART
iPod control data received
input.
I
2.98
2.98
2.95
70
iPOD_RX_
UART
iPod control data send
output.
O
0
0
0
71
OPEN/
CLOSE
Panel flip down sensor
I
0
4.55
4.53
72
EJ_KEY
Eject button
I
4.27
4.27
4.27
73
BATT
Battery power connected
signal detection.
I
4.55
4.55
4.53
74
ACC
ACC power detection.
I
4.89
4.90
4.89
75
BT_TX
BT data received input.
I
3.32
3.33
3.33
76
BT_RX
BT data send output.
O
4.35
4.36
4.36
77
N.C.
Not connected.
O
0
0
0
78
BT_RESET BT module reset signal
output.
O
4.60
4.61
4.60
79
VDDPORT
2
VDD -
4.72
4.74
4.72
80
VSS3
GND
-
0
0
0
81
RADIO_CL
K
Radio Tuner clock control
signal output.
O
4.59
0
0
82
RADIO_DA
TA
Radio Tuner data control
signal input/output.
I/O
4.53
0
0
83
N.C.
Not connected.
O
0
0
0
84
EXT_ROM
_I2C_SCK
I2C clock output for stor-
ing last settings.
O
4.72
4.74
4.72
85
EXT_ROM
_I2C_SDA
I2C data input/output for
storing last settings.
I/O
4.72
4.73
4.72
86
N.C.
Not connected.
O
0
0
0
87
SXI_TX
SXI data received input
I
0
4.99
4.99
88
SXI_RX
SXI data send output
O
4.72
4.74
4.72
89
RADIO_MO
DE
Radio power control signal
output.
O
0
0
0
90
SXI_PWR_
EN
SXI Power control signal
output.
O
4.72
4.74
4.72
91
SXI_PWR_
CNT
SXI Power control signal
output.
O
4.70
4.71
4.69
92
N.C.
Not connection.
O
0
0
0
93
USB_FLG
USB power current over-
load protection signal
input.
I
5.17
5.18
5.17
94
USB_ENBL USB V-BUS on/off control
signal output.
O
4.70
4.72
4.70
95
ANT_CNT
ANTcontrol signal output.
O
4.69
4.72
4.69
96
VDDPLL
VDD -
3.31
3.32
3.31
97
VSS4
GND
-
0
0
0
98
LPF0
-
1.14
1.14
1.14
99
AF_MUTE
AF MUTE control signal
input.
O
0
0
0
100
AMP_MUT
E
AMP_MUTE control signal
output.
O
3.31
3.32
3.31
PIN
No.
Port
Description
I/O
FM(V) CD(V)
USB(V)
cqrxbt490u.book Page 5 Friday, April 6, 2012 9:48 AM
Summary of Contents for SiriusXM CQ-RXBT490U
Page 10: ...10 IC201 C1BA00000493 IC602 C3EBJY000032 cqrxbt490u book Page 10 Friday April 6 2012 9 48 AM ...
Page 11: ...11 IC400 C1BB00001088 cqrxbt490u book Page 11 Friday April 6 2012 9 48 AM ...
Page 12: ...12 IC50 C1ZBZ0004389 IC706 C0DBGYY00710 cqrxbt490u book Page 12 Friday April 6 2012 9 48 AM ...
Page 13: ...13 IC707 C0DBGYY00710 IC180 C0CBCYG00004 cqrxbt490u book Page 13 Friday April 6 2012 9 48 AM ...
Page 14: ...14 IC701 C0DAZYY00033 cqrxbt490u book Page 14 Friday April 6 2012 9 48 AM ...
Page 15: ...15 IC803 C1AB00003758 cqrxbt490u book Page 15 Friday April 6 2012 9 48 AM ...
Page 16: ...16 IC705 C0EBY0001290 cqrxbt490u book Page 16 Friday April 6 2012 9 48 AM ...
Page 17: ...17 IC902 B3RAB0000091 IC181 C0JBAB000255 cqrxbt490u book Page 17 Friday April 6 2012 9 48 AM ...
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