RTL8201DL-GR_07 datasheet(13/41 Pages) REALTEK

Part #	RTL8201DL-GR

Description	SINGLE-CHIP/PORT 10/100 FAST ETHERNET PHYCEIVER WITH AUTO MDIX

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Manufacturer	REALTEK [Realtek Semiconductor Corp.]

Direct Link	https://www.realtek.com/en/

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RTL8201DL

Datasheet

Single-Chip/Port 10/100 Fast Ethernet PHYceiver with Auto MDIX

7

Track ID: JATR-1076-21 Rev. 1.0

6.4. Clock Interface

Table 4. Clock Interface

Name

Type

Pin No.

Description

CKXTAL2

O

46

25MHz Crystal Output.

This pin provides the 25MHz crystal output. It must be left open when an external

25MHz oscillator drives X1.

CKXTAL1

I

47

25MHz Crystal Input.

This pin provides the 25MHz crystal input. If a 25MHz oscillator is used, connect

CKXTAL1 to the oscillator’s output (see 9.3 Crystal Characteristics, page 32, for

clock source specifications).

6.5. 10Mbps/100Mbps Network Interface

Table 5. 10Mbps/100Mbps Network Interface

Name

Type

Pin No.

Description

TPTX+

TPTX-

O

3

4

Transmit Output.

Differential transmit output pair shared by 100Base-TX, 100Base-FX and 10Base-

T modes. When configured as 100Base-TX, output is an MLT-3 encoded

waveform. When configured as 100Base-FX, the output is pseudo-ECL level.

RSET

I

1

Transmit Bias Resistor Connection.

This pin should be pulled to GND by a 2KΩ (1%) resistor to define driving current

for the transmit DAC. The resistance value may be changed, depending on

experimental results of the RTL8201DL.

TPRX+

TPRX-

I

6

7

Receive Input.

Differential receive input pair shared by 100Base-TX, 100Base-FX, and 10Base-T

modes.

6.6. Device Configuration Interface

Table 6. Device Configuration Interface

Name

Type

Pin No.

Description

PHYAD[2:0]

I

42, 43, 44

PHY Address. Set the PHY address for the device.

CRS/RPTR

LI/O

37

Repeater Mode.

Set high to put the RTL8201DL into repeater mode. This pin can be directly

connected to GND or VCC.

COL/SNI

LI/O

36

MII/SNI Interface.

This pin is latched to input during a power on or reset condition. Pull high to set

the RTL8201DL into SNI mode operation. Set low for MII mode. This pin can

be directly connected to GND or VCC.

ANE

LI

30

Auto-Negotiation Mode.

This pin is latched to input during a power on or reset condition. Set high to

enable Auto-negotiation mode, set low to force mode. This pin can be directly

connected to GND or VCC.

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RTL8201DL-GR Datasheet(PDF) 13 Page - Realtek Semiconductor Corp.

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