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參數(shù)資料
| 型號： | SP505BCM-L |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 27/35頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX WAN MULTI-MODE 80LQFP |
| 標(biāo)準(zhǔn)包裝： | 84 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 7/7 |
| 規(guī)程： | 多協(xié)議 |
| 電源電壓： | 5V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 80-LQFP |
| 供應(yīng)商設(shè)備封裝： | 80-LQFP（14x14） |
| 包裝： | 托盤 |
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Exar Coporation 48720 Kato Road, Fremont CA, 94538 (50) 668-7000 Fax (50) 668-707 www.exar.com
SP505_00_08308
LOOPBACK MODE...
The SP505 is equipped with two loopback
modes. Single-ended loopback internally
connects V.28 driver outputs to V.28 receiver
inputs. The signal path is non-inverting and
will support data rates up to 20kbps. The
propagation delay times are as specified
in the electrical specifications. To initiate
a single-ended loopback, the code "00"
should be written to the driver decoder.
Differential loopback is implemented by
applying "0" to the driver decoder. This
internally connects V. driver outputs to
V. receiver inputs. The signal path again
is non-inverting; the differential loopback
data rate can be at least 5Mbps.
Under loopback conditions the receiver
decoder is disabled. While the SP505 is in
either single-ended or differential loopback
mode, the driver outputs are tri-stated and
the receiver inputs are disabled.
Mode
Driver Output
Receiver Input
Driver Receiver
non-inverting
inverting
non-inverting
inverting
Input
Output
Loopback
DEC = 1010
tri-state
>10K to GND >10K to GND active
active
DEC = 1011
tri-state
>10K to GND >10K to GND active
active
Power down
clamped
V
CC=VDD=VSS=0V
tri-state
>10K to GND >10K to GND inactive at ±0.6V
Tri-state
DEC = 0000
tri-state
>10K to GND >10K to GND inactive tri-state
MODE: Differential Loopback
DRIVER/RECEIVER
DEC
3 DEC2 DEC1
DEC
0
RD(a) 70
RxD 1
RT(a) 37
RxC 20
SCT(a) 76
SCT 79
SCTEN 7
SCT(b) 77
15 TxC
63 TT(a)
65 TT(b)
6
TTEN
RECEIVERS
DRIVERS
22 ST
42 ST(a)
44 ST(b)
23 STEN
CS(a) 66
CTS 80
RR(a) 35
DCD 19
RR(b) 36
CS(b) 67
RT(b) 38
RD(b) 71
1
0
1
24 LL
51 LL(a)
49 LL(b)
5
LLEN
14 TxD
61 SD(a)
59 SD(b)
2 SDEN
13 DTR
58 TR(a)
56 TR(b)
3 TREN
16 RTS
54 RS(a)
52 RS(b)
4 RSEN
17 RL
47 RL(a)
45 RL(b)
18 RLEN
IC(a) 39
RI 21
IC(b) 40
DM(a) 68
DSR 78
DM(b) 69
IC(a) 39
RI 21
SCTEN 7
RECEIVERS
DRIVERS
1
0
1
0
24 LL
51 LL(a)
5 LLEN
13 DTR
58 TR(a)
3 TREN
DM(a) 68
DSR 78
16 RTS
54 RS(a)
4 RSEN
17 RL
47 RL(a)
18 RLEN
RR(a) 35
DCD 19
CS(a) 66
CTS 80
RD(a) 70
RxD 1
RT(a) 37
RxC 20
SCT(a) 76
SCT 79
14 TxD
61 SD(a)
2 SDEN
15 TxC
63 TT(a)
6 TTEN
22 ST
42 ST(a)
23 STEN
MODE: Single-Ended Loopback
DRIVER/RECEIVER
DEC
3
DEC
2 DEC1
DEC
0
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP505CF | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Multi-Protocol Serial Transceivers |
| SP505EB | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Multi-Protocol Serial Transceivers |
| SP505EK | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Multi-Protocol Serial Transceivers |
| SP505P | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:LIQUID CRYSTAL DISPLAYS(STANDARD PRODUCTS) |
| SP505RB | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Multi-Protocol Serial Transceivers |
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