ADP1050ACPZ-R7 datasheet(84/93 Pages) AD

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Data Sheet

ADP1050

PWM OUTPUTS TIMING REGISTERS

Figure 58 and Register 0xFE3E to Register 0xFE53 describe the implementation and programming of the four PWM signals that are

generated by the ADP1050.

OUTA

OUTB

SR1

SR2

tF1

tR1

tF2

tR2

tF5

tR5

tF6

tR6

tPERIOD

Figure 58. PWM Timing Diagram

Table 139. Register 0xFE3E/Register 0xFE41/Register 0xFE4A/Register 0xFE4D—OUTA/OUTB/SR1/SR2 Rising Edge Timing

Bits

Bit Name/Function

R/W

Description

[7:0]

Rising edge timing, tRX,

MSBs

R/W

These bits contain the eight MSBs of the 12-bit tRX time. This value is always used with the four

MSBs of Register 0xFE40, Register 0xFE43, Register 0xFE4C, and Register 0xFE4F, which contain

the four LSBs of the tRX time.

tRx represents tR1, tR2, tR5, and tR6. Each LSB corresponds to 5 ns resolution.

Table 140. Register 0xFE3F/Register 0xFE42/Register 0xFE4B/Register 0xFE4E—OUTA/OUTB/SR1/SR2 Falling Edge Timing

Bits

Bit Name/Function

R/W

Description

[7:0]

Falling edge timing, tFX,

MSBs

R/W

These bits contain the eight MSBs of the 12-bit tFX time. This value is always used with the four

LSBs of Register 0xFE40, Register 0xFE43, Register 0xFE4C, and Register 0xFE4F, which contain the

four LSBs of the tFX time.

tFX represents tF1, tF2, tF5, and tF6. Each LSB corresponds to 5 ns resolution.

Table 141. Register 0xFE40/Register 0xFE43/Register 0xFE4C/Register 0xFE4F—OUTA/OUTB/ SR1/SR2 Rising and Falling Edge

Timing (LSBs)

Bits

Bit Name/Function

R/W

Description

[7:4]

Rising edge timing, tRX,

LSBs

R/W

These bits contain the four LSBs of the 12-bit tRX time. This value is always used with the eight bits of

MSBs of the tRX time.

tRx represents tR1, tR2, tR5, and tR6. Each LSB corresponds to 5 ns resolution.

[3:0]

Falling edge timing, tFX,

LSBs

R/W

These bits contain the four LSBs of the 12-bit tFX time. This value is always used with the eight bits

of Register 0xFE3F, Register 0xFE42, Register 0xFE4B, and Register 0xFE4E, which contain the eight

MSBs of the tFX time.

tFX represents tF1, tF2, tF5, and tF6. Each LSB corresponds to 5 ns resolution.

Rev. A | Page 83 of 92

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