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ZHCSP13A september 2021 – june 2023 LMK1D1204P

PRODUCTION DATA

封装选项

机械数据 (封装 | 引脚)

RHD|28
- MPQF133F

散热焊盘机械数据 (封装 | 引脚)

RHD|28
- QFND050K

订购信息

9.4 Device Functional Modes

The two inputs of the LMK1D1204P are internally muxed together and can be selected through the control pin (see Table 9-1). Unused inputs can be left floating to reduce overall component cost. Both AC- and DC-coupling schemes can be used with the LMK1D1204P to provide greater system flexibility.

Table 9-1 Input Selection Table

IN_SEL	ACTIVE CLOCK INPUT
0	IN0_P, IN0_N
1	IN1_P, IN1_N
Open	None ⁽¹⁾

(1) The input buffers are disabled and the state of the outputs are dependent on the state of OEx (see Table 9-2). If OEx = 0, the corresponding output will be disabled in Hi-Z state, whereas if OEx = 1 (default), the corresponding output will be logic low.

The outputs of the LMK1D1204P can be individually enabled or disabled using the OEx hardware pins (see Table 9-2). The disabled state of the outputs is Hi-Z (high impedance) as this reduces the power consumption and also prevents back-biasing of the devices connected to these outputs.

Unused outputs should be disabled to eliminate the need for a termination resistor. In the case of enabled unused outputs, TI recommends a 100-Ω termination for optimal performance.

Table 9-2 Output Control

OEx	CLOCK OUTPUTS
0	OUTPx, OUTNx disabled in Hi-Z state
1 (default)	OUTPx, OUTNx enabled