Panasonic CQ-RXBT490U - Technical Descriptions

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.
-3.303.303.30
11 VSS1 GND - 0 0 0
12 XT1 Main Crystal 1
(32.768KHz) connected.
I1.301.301.29
13 XT2 Main Crystal 2
(32.768KHz) connected.
O1.711.71 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.
O4.684.69 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.
I4.464.474.46
39 E-
VOL_I2C_S
CK
Electronic Vol-IC commu-
nication.
O4.724.74 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.
O0 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.
O0 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.
O0 0 0
62 OSCCTL13 DSP standby control
mode.
O0 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.
I0 03.10
67 BEEP Beep sound control signal
output.
O0 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.
O0 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.
O4.59 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.
O0 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.
O0 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