2

SAM0660-080406

ESS Technology, Inc.

ES4810SAA PRODUCT BRIEF

MECHANICAL DIMENSIONS

PRELIMINARY

MECHANICAL DIMENSIONS

The mechanical dimensions for the ES4810 are shown in Figure

2.

Figure 2 208-pin Low-profile Quad Flat Package (LQFP)

Symbol

Descriptions

Millimeters

Minimum

Nominal

Maximum

D

Lead to lead, X-axis

29.85

30.00

30.15

D1

Package’s outside, X-axis

27.90

28.00

28.10

D2

Exposed pad, X-axis

—

—

E

Lead to lead, Y-axis

29.85

30.00

30.15

E1

Package’s outside, Y-axis

27.90

28.00

28.10

E2

Exposed pad, Y-axis

—

—

A1

Board standoff

0.05

0.10

0.15

A2

Package thickness

1.35

1.40

1.45

b

Lead width

0.17

0.22

0.27

e

Lead pitch (center to center)

—

0.50

—

e1

Lead gap

0.23

0.28

0.33

L

Foot length

0.45

0.60

0.75

L1

Lead length

0.90

1.00

1.10

—

Foot angle

0°

—

7°

—

Coplanarity

—

—

0.102

—

Number of leads in X-axis

—

52

—

—

Number of leads in Y-axis

—

52

—

—

Total number of leads

—

208

—

—

Package type

—

LQFP

—

(1)

Depending on the assembly house, the D2 and E2 dimensions may vary slightly.

For lead-free devices, the solder paste and PCB finish/plating must be 100% lead free in order to

ensure proper solderability.

E1

A2

A1

L

E

D1

b

D

e

1

e1

L1

E2

D2