MAX4952BCTP 데이터 시트보기 (PDF) - Maxim Integrated

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MAX4952BCTP

Dual 1.5/3.0/6.0Gbps SAS/SATA Redriver

Maxim Integrated 

Dual 1.5/3.0/6.0Gbps SAS/SATA Redriver

Pin Configuration

TOP VIEW

15 14 13 12 11

VCC 16

GND 17

GND 18

MAX4952B

M 19

VCC 20

+

*EP

10 VCC

9 BA

8 BB

7 EN

6 VCC

1 2345

TQFN

*CONNECT EXPOSED PAD (EP) TO GND.

Pin Description

PIN

1

2

3, 13, 17, 18

4

5

6, 10, 16, 20

7

8

9

11

12

14

15

19

—

NAME

HAP

HAM

GND

HBM

HBP

VCC

EN

BB

BA

DBP

DBM

DAM

DAP

M

EP

FUNCTION

Noninverting Input from Host Channel A. HAP must be capacitively coupled (see note).

Inverting Input from Host Channel A. HAM must be capacitively coupled (see note).

Ground

Inverting Output to Host Channel B. HBM must be capacitively coupled (see note).

Noninverting Output to Host Channel B. HBP must be capacitively coupled (see note).

Power-Supply Input. Bypass VCC to GND with low-ESR 0.01FF and 4.7FF capacitors in parallel as

close to the device as possible; recommended for each VCC pin.

Enable Input. Drive EN low for low-power standby mode. Drive EN high for normal operation. EN is

internally pulled down by a 70kI (typ) resistor.

Channel B Boost-Enable Input. Drive BB high to enable channel B +6dB output boost. Drive BB low

for standard SAS/SATA output level. BB is internally pulled down by a 70kI (typ) resistor.

Channel A Boost-Enable Input. Drive BA high to enable channel A +6dB output boost. Drive BA low

for standard SAS/SATA output level. BA is internally pulled down by a 70kI (typ) resistor.

Noninverting Input from Device Channel B. DBP must be capacitively coupled (see note).

Inverting Input from Device Channel B. DBM must be capacitively coupled (see note).

Inverting Output to Device Channel B. DAM must be capacitively coupled (see note).

Noninverting Output to Device Channel B. DAP must be capacatively coupled (see note).

OOB-Mode Logic Input. M is internally pulled down by a 70kI (typ) resistor. Drive M low or leave

unconnected for SATA OOB threshold. Drive M high for SAS OOB threshold.

Exposed Pad. Internally connected to GND. Connect to a large ground plane for proper thermal and

electrical operation. Not intended as an electrical connection point.

Note: For proper operation, Maxim recommends the use of low-ESR, X7R, 10nF, 0402-sized capacitors for all redriver inputs and

outputs.

6   _______________________________________________________________________________________

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