American Audio B20 User Manual download pdf (Page 19)

Si473x-B20

Rev. 0.5 19

7. Package Outline: Si473x QFN

Figure 5 illustrates the package details for the Si473x. Table 11 lists the values for the dimensions shown in the

illustration.

Figure 5. 20-Pin Quad Flat No-Lead (QFN)

Table 11. Package Dimensions

Symbol Millimeters Symbol Millimeters

Min Nom Max Min Nom Max

A 0.50 0.55 0.60 f 2.53 BSC

A1 0.00 0.02 0.05 L 0.35 0.40 0.45

b 0.200.250.30 L1 0.00 — 0.10

c 0.27 0.32 0.37 aaa — — 0.05

D 3.00 BSC bbb — — 0.05

D2 1.65 1.70 1.75 ccc — — 0.08

e 0.50 BSC ddd — — 0.10

E 3.00 BSC eee — — 0.10

E2 1.65 1.70 1.75

Notes:

1. All dimensions are shown in millimeters (mm) unless otherwise noted.

2. Dimensioning and tolerancing per ANSI Y14.5M-1994.

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American Audio B20 User Manual Page 19