ZM60_sm.pdf

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1-1. GSM General Specification

E G S M 9 0 0

D C S 1 8 0 0

P C S 1 9 0 0

W - C D M A

F r e q .

B a n d [ M H z ]

U p l i n k / D o w n l i n k

8 8 0 ~ 9 1 5

9 2 5 ~ 9 6 0

1 7 1 0 ~ 1 7 8 5

1 8 0 5 ~ 1 8 8 0

1 8 5 0 ~ 1 9 1 0

1 9 3 0 ~ 1 9 9 0

1 9 2 0 ~ 1 9 8 0

2 1 1 0 ~ 2 1 7 0

A R F C N r a n g e

0 ~ 1 2 4 &

9 7 5 ~ 1 0 2 3

5 1 2 ~ 8 8 5

5 1 2 ~ 8 1 0

U L : 9 6 1 2 ~ 9 8 8 8

D L : 1 0 5 6 2 ~ 1 0 8 3 8

T x/ R x s p a c i n g

4 5 M H z

9 5 M H z

8 0 M H z

1 9 0 M H z

M o d . B i t r a t e /

B i t P e r i o d

2 7 0 . 8 3 3 k b p s

3 . 6 9 2 u s

2 7 0 . 8 3 3 k b p s

3 . 6 9 2 u s

2 7 0 . 8 3 3 k b p s

3 . 6 9 2 u s

3 . 8 4 M c p s

T i m e S l o t

P e r i o d / F r a m e

P e r i o d

5 7 6 . 9 u s

4 . 6 1 5 m s

5 7 6 . 9 u s

4 . 6 1 5 m s

5 7 6 . 9 u s

4 . 6 1 5 m s

F r a m e l e n g t h : 1 0 m s

S l o t l e n g t h : 0 . 6 6 7 m s

M o d u l a t i o n

0 . 3 G M S K

Q P S K

H Q P S K

M S P o w e r

3 3 d B m ~ 5 d B m 3 0 d B m ~ 0 d B m 3 0 d B m ~ 0 d B m

2 4 d B m ~ - 5 0 d B m

P o w e r C l a s s

(max +33dBm)

(max +30dBm)

(max +24dBm)

S e n s i t i v i t y

- 1 0 2 d B m

- 1 0 0 d B m

- 1 0 6 . 7 d B m

T D M A M u x

C e l l R a d i u s

3 5 K m

2 K m

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1-2. GSM TX power class

TX Power

control level

GSM900

TX Power

control level

DCS1800

TX Power

control level

PCS1900

33±2 dBm

30±3 dBm

31±2 dBm

28±3 dBm

29±2 dBm

26±3 dBm

27±2 dBm

24±3 dBm

25±2 dBm

22±3 dBm

23±2 dBm

20±3 dBm

21±2 dBm

18±3 dBm

19±2 dBm

16±3 dBm

17±2 dBm

14±3 dBm

15±2 dBm

12±4 dBm

13±2 dBm

10±4 dBm

11±3 dBm

8±4dBm

9±3dBm

6±4 dBm

7±3 dBm

4±4 dBm

5±3 dBm

2±5 dBm

0±5 dBm

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2-1. SGH-ZM60 RF Circuit Description

- Antenna Switch Module (U600)

The antenna switch module allows multiple operating bands and modes to share the same antenna. A common

antenna connects to one of five paths: 1) UMTS-2100 Rx/Tx, 2) EGSM-900 Rx, 3) EGSM-900 Tx, 4) DCS-1800

Rx, and 5) DCS-1800 Tx. 6) PCS-1900 Tx, 7) PCS-1900 Rx, UMTS operation requires simultaneous reception

and transmission.

-Filter

To convert Electromagnetic Field Wave to Acoustic Wave and then pass the specific frequency band.

- GSM Rx FILTER (F601) ª For filtering the frequency band between 925 ~ 960 MHz.

- DCS Rx FILTER (F602) ª For filtering the frequency band 1805 and 1880 MHz.

- DCS Rx FILTER (F603) ª For filtering the frequency band 1930 and 1990 MHz.

- WCDMA Rx FILTER (F701) ª For filtering the frequency band 2110 and 2170 MHz.

- WCDMA Tx FILTER (F703) ª For filtering the frequency band 1920 and 1980 MHz.

- VCTCXO (OSC701)

To generate the 19.2MHz reference clock to drive the logic and RF.

- Duplexer (F202)

A duplexer splits a single operating band into receive and transmit paths.

- UMTS PAM (U701)

This is a key component in the transmitter chain and must complement the RTR6250 IC precisely; jointly they

dominate the UMTS transmitter performance characteristics. Parameters such as gain, output power level, ACLR,

harmonics, Rx-band noise, and power supply current are critical.

- GSM/DCS/PCS PAM (U603)

The PAM is a key component in any transmitter chain and must complement the rest of the transmitter precisely.

For GSM,DCS,PCS operation, the closed-loop transmit power control functions add even more requirements

relative to the UMTS PA. In addition to gain control and switching requirements, the usual RF parameters such

as gain, output power level, several output spectrum requirements, and power supply current are critical.

- GSM/DCS/PCS l Tx VCO (U601)

The Tx VCO outputs for EGSM, DCS, PCS drive a resistive network that splits the active signal into two signals:

1) the input to the active PAM – this is the low loss path, and 2) the OPLL feedback signal.

- RF VCO (OSC702)

The single-band UHF VCO is a key component within its phase-locked loop; VCO performance directly impacts

PLL and transceiver performance. UMTS Rx LO signal is generated from this VCO's output.

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