TLK2711JRZQE Datasheet, PDF (6/27 Pages) Texas Instruments – 1.6 TO 2.7 GBPS TRANSCEIVER

TLK2711
1.6 TO 2.7 GBPS TRANSCEIVER
SLLS501 – SEPTEMBER 2001
NAME
RXD0
RXD1
RXD2
RXD3
RXD4
RXD5
RXD6
RXD7
RXD8
RXD9
RXD10
RXD11
RXD12
RXD13
RXD14
RXD15
RXN
RXP
DINRXN
DINRXP
TESTEN
TKLSB
TERMINAL
NO.
GQE
RCP
H3
51
J2
50
H2
49
H1
47
G2
46
G1
45
F2
44
F1
42
E1
40
D1
39
C1
37
D2
36
C2
35
B1
34
B2
32
A2
31
J3
J4
53
54
B4
27
A6
22
TKMSB
B7
20
TXCLK
E9
GTX_CLK
8
TXD0
H7
62
TXD1
J8
63
TXD2
H8
64
TXD3
H9
2
TXD4
G8
3
TXD5
G9
4
TXD6
F9
6
TXD7
F8
7
TXD8
D9
10
TXD9
D8
11
TXD10
C9
12
TXD11
C8
14
TXD12
B9
15
TXD13
B8
16
TXD14
A8
17
TXD15
A7
19
TXN
J6
TXP
J7
DOUTTXN
59
DOUTTXP
60
† _{Internal 10k pullup}
‡ _{Internal 10k pulldown}
Terminal Functions (Continued)
I/O
DESCRIPTION
O Receive data bus. These outputs carry 16-bit parallel data output from the transceiver to the
protocol device, synchronized to RXCLK. The data is valid on the rising edge of RXCLK as
shown in Figure 5. These terminals are in high-impedance state during power-on reset.
I Serial receive inputs. RXP and RXN together are the differential serial input interface from a
copper or an optical I/F module.
I^‡ Test mode enable. This terminal should be left unconnected or tied low.
I^† K-code generator (LSB). When TKLSB is high, an 8-bit/10-bit K code is transmitted as
controlled by data bits TXD0 –TXD7. When TKLSB is low an 8-bit/10-bit D code is transmitted
as controlled by data bits TXD0 – TXD7.
I^† K-code generator (MSB). When TKMSB is high an 8-bit/10-bit K code is transmitted as
controlled by data bits TXD8 –TXD15. When TKMSB is low an 8-bit/10-bit D code is
transmitted as controlled by data bits TXD8 – TXD15.
I Reference clock. TXCLK is a continuous external input clock that synchronizes the transmitter
interface signals TKMSB, TKLSB and TXD [0..15]. The frequency range of TXCLK is 80 MHz
to 135 MHz. The transmitter uses the rising edge of this clock to register the 16-bit input data
TXD [0..15] for serialization.
I Transmit data bus. These inputs carry the 16-bit parallel data output from a protocol device
to the transceiver for encoding, serialization, and transmission. This 16-bit parallel data is
clocked into the transceiver on the rising edge of TXCLK as shown in Figure 2.
O Serial transmit outputs. TXP and TXN are differential serial outputs that interface to copper
or an optical I/F module. These terminals transmit NRZ data at a rate of 20 times the TXCLK
value. TXP and TXN are put in a high-impedance state when LOOPEN is high and are active
when LOOPEN is low. During power-on reset these terminals are high impedance.
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