ZHCSMR3A november 2020 – november 2020 DS90UB633A-Q1
PRODUCTION DATA
The MODE pin on the serializer can be configured to select if the DS90UB633A-Q1 device is to be operated from the external oscillator or the PCLK from the imager. The pin must be pulled to VDD_n(1.8 V, not VDDIO) with a resistor R1 and a pulldown resistor R2 for external oscillator mode to create the ratio shown in Figure 7-6. If the device is to be operated from PCLK from imager mode, MODE pin can be pulled up to VDD_n (1.8V) with a 10-kΩ resistor directly or use the ratio shown in Figure 7-6 and Table 7-2. Suggested resistor values are given in Table 7-2. The recommended maximum resistor tolerance is 1%. Other resistor values can be used as long as the ratio is met under all conditions.
DS90UB633A-Q1 SERIALIZER MODE SETTING | ||||
---|---|---|---|---|
MODE SELECT | MINIMUM RATIO (VMODE/V(VDD_n)) | MAXIMUM RATIO (VMODE/V(VDD_n)) | SUGGESTED R1 RESISTOR VALUE (kΩ) | SUGGESTED R2 RESISTOR VALUE (kΩ) |
PCLK from imager mode | 0.750 | 1.000 | 10 | 50 |
External oscillator mode | 0.292 | 0.339 | 10 | 4.7 |