Si4708/09-B
34 Confidential Rev. 1.4
8. Ordering Guide
Part
Number*
Description
Package
Type
Operating
Temperature
Si4708-B-GM Portable Broadcast Radio Tuner
FM Stereo
QFN
Pb-free
–20 to 85 °C
Si4709-B-GM Portable Broadcast Radio Tuner
FM Stereo with RDS
QFN
Pb-free
–20 to 85 °C
*Note: Add an “(R)” at the end of the device part number to denote tape and reel option.
Si4708/09-B
Confidential Rev. 1.4 35
9. Package Markings (Top Marks)
9.1. Si4708 Top Mark
9.2. Si4709 Top Mark
9.3. Top Mark Explanation
Mark Method: YAG Laser
Line 1 Marking: Device Number 4708 = Si4708
4709 = Si4709
Line 2 Marking: TTTT = Mfg Code Line 2 from the "Markings" section of the Assem-
bly Purchase Order form.
Line 3 Marking: Pin 1 Identifier. Circle = 0.3 mm Diameter
YWW = Date Code Assigned by the Assembly House. Corresponds
to the last digit of the current year (Y) and the
workweek (WW) of the assembly release.
Si4708/09-B
36 Confidential Rev. 1.4
10. Package Outline: Si4708/09-GM
Figure 9 illustrates the package details for the Si4708/09-GM. Table 9 lists the values for the dimensions shown in
the illustration.
Figure 9. 16-Pin Quad Flat No-Lead (QFN)
Table 9. Package Dimensions
Symbol Millimeters Symbol Millimeters
Min Nom Max Min Nom Max
A 0.50 0.55 0.60 E2 1.35 1.40 1.45
A1 0.00 0.02 0.05 f 2.00 BSC
b 0.18 0.23 0.28 L 0.25 0.30 0.35
c 0.250.300.35 aaa 0.05
D 2.50 BSC bbb 0.05
D2 1.35 1.40 1.45 ccc 0.08
e 0.50 BSC ddd 0.10
E 2.50 BSC eee 0.10
Notes:
1. All dimensions are shown in millimeters unless otherwise noted.
2. Dimensioning and tolerancing per ANSI Y14.5M-1994.

SI4709-B-GM

Mfr. #:
Manufacturer:
Silicon Labs
Description:
RF RCVR FM 76MHZ-108MHZ 16QFN
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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